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Ha Long Bay Weather in September, Vietnam

Slide and Tap Other Months

  • What is Average Temperature?
    The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

    Temperature

    28°C
    82°F
  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    High Temperature

    31°C
    88°F
  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    Low Temperature

    24°C
    75°F
  • What is Average Sea Temperature?
    Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface

    Sea Temperature

    27°C
    81°F
  • What are Average Daily Sunshine Hours?
    Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer

    Sunshine Hours

    7 hours
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

    Rainfall Days

    14 days
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

    Rainfall

    190 mm

September, 2025

Sun
Mon
1
Tue
2
Wed
3
Thu
4
Fri
5
Sat
6
  • 25

    77

    Hour 5

    5:00

  • Sunset

    05:36

  • 26

    79

    Hour 6

    6:00

  • 26

    79

    Hour 7

    7:00

  • 27

    81

    Hour 8

    8:00

  • 28

    82

    Hour 9

    9:00

  • 30

    86

    Hour 10

    10:00

  • 30

    86

    Hour 11

    11:00

  • 30

    86

    Hour 12

    12:00

  • 30

    86

    Hour 13

    13:00

  • 30

    86

    Hour 14

    14:00

  • 29

    84

    Hour 15

    15:00

  • 29

    84

    Hour 16

    16:00

  • 28

    82

    Hour 17

    17:00

  • 27

    81

    Hour 18

    18:00

  • Sunset

    18:08

  • 26

    79

    Hour 19

    19:00

  • 26

    79

    Hour 20

    20:00

  • 26

    79

    Hour 21

    21:00

  • 26

    79

    Hour 22

    22:00

  • 26

    79

    Hour 23

    23:00

  • Tuesday
  • 26

    79

    0:00

  • 25

    77

    1:00

  • 25

    77

    2:00

  • 25

    77

    3:00

  • 25

    77

    4:00

    • 06:00

      Light rain shower

      26º

      79º

    • 07:00

      Patchy rain possible

      26º

      79º

    • 08:00

      Patchy rain possible

      27º

      81º

    • 09:00

      Patchy rain possible

      28º

      82º

    • 10:00

      Patchy rain possible

      30º

      86º

    • 11:00

      Patchy rain possible

      30º

      86º

    • 12:00

      Patchy rain possible

      30º

      86º

    • 13:00

      Patchy rain possible

      30º

      86º

    • 14:00

      Patchy rain possible

      30º

      86º

    • 15:00

      Patchy rain possible

      29º

      84º

    • 16:00

      Patchy rain possible

      29º

      84º

    • 17:00

      Clear

      28º

      82º

    • 18:00

      Patchy rain possible

      27º

      81º

    • 18 08

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 19:00

      Clear

      26º

      79º

    • 20:00

      Clear

      26º

      79º

    • 21:00

      Clear

      26º

      79º

    • 22:00

      Clear

      26º

      79º

    • 23:00

      Partly cloudy

      26º

      79º

    • 00:00

      Tue

      Partly cloudy

      26º

      79º

    • 01:00

      Partly cloudy

      25º

      77º

    • 02:00

      Partly cloudy

      25º

      77º

    • 03:00

      Partly cloudy

      25º

      77º

    • 04:00

      Partly cloudy

      25º

      77º

    • 05:00

      Partly cloudy

      25º

      77º

    • 05 34

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
  • 25

    77

    Hour 5

    5:00

  • Sunset

    05:36

  • 26

    79

    Hour 6

    6:00

  • 26

    79

    Hour 7

    7:00

  • 27

    81

    Hour 8

    8:00

  • 29

    84

    Hour 9

    9:00

  • 30

    86

    Hour 10

    10:00

  • 30

    86

    Hour 11

    11:00

  • 30

    86

    Hour 12

    12:00

  • 30

    86

    Hour 13

    13:00

  • 30

    86

    Hour 14

    14:00

  • 30

    86

    Hour 15

    15:00

  • 29

    84

    Hour 16

    16:00

  • 28

    82

    Hour 17

    17:00

  • 28

    82

    Hour 18

    18:00

  • Sunset

    18:07

  • 27

    81

    Hour 19

    19:00

  • 26

    79

    Hour 20

    20:00

  • 26

    79

    Hour 21

    21:00

  • 26

    79

    Hour 22

    22:00

  • 26

    79

    Hour 23

    23:00

  • Wednesday
  • 26

    79

    0:00

  • 25

    77

    1:00

  • 25

    77

    2:00

  • 25

    77

    3:00

  • 25

    77

    4:00

    • 06:00

      Patchy rain possible

      26º

      79º

    • 07:00

      Patchy rain possible

      26º

      79º

    • 08:00

      Patchy rain possible

      27º

      81º

    • 09:00

      Patchy rain possible

      29º

      84º

    • 10:00

      Patchy rain possible

      30º

      86º

    • 11:00

      Patchy rain possible

      30º

      86º

    • 12:00

      Patchy rain possible

      30º

      86º

    • 13:00

      Patchy rain possible

      30º

      86º

    • 14:00

      Clear

      30º

      86º

    • 15:00

      Patchy rain possible

      30º

      86º

    • 16:00

      Clear

      29º

      84º

    • 17:00

      Clear

      28º

      82º

    • 18:00

      Clear

      28º

      82º

    • 18 07

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 19:00

      Clear

      27º

      81º

    • 20:00

      Clear

      26º

      79º

    • 21:00

      Clear

      26º

      79º

    • 22:00

      Clear

      26º

      79º

    • 23:00

      Partly cloudy

      26º

      79º

    • 00:00

      Wed

      Partly cloudy

      26º

      79º

    • 01:00

      Partly cloudy

      26º

      79º

    • 02:00

      Partly cloudy

      25º

      77º

    • 03:00

      Partly cloudy

      25º

      77º

    • 04:00

      Partly cloudy

      25º

      77º

    • 05:00

      Partly cloudy

      26º

      79º

    • 05 34

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
  • 26

    79

    Hour 5

    5:00

  • Sunset

    05:36

  • 26

    79

    Hour 6

    6:00

  • 27

    81

    Hour 7

    7:00

  • 28

    82

    Hour 8

    8:00

  • 29

    84

    Hour 9

    9:00

  • 30

    86

    Hour 10

    10:00

  • 30

    86

    Hour 11

    11:00

  • 30

    86

    Hour 12

    12:00

  • 31

    88

    Hour 13

    13:00

  • 30

    86

    Hour 14

    14:00

  • 30

    86

    Hour 15

    15:00

  • 30

    86

    Hour 16

    16:00

  • 29

    84

    Hour 17

    17:00

  • 28

    82

    Hour 18

    18:00

  • Sunset

    18:06

  • 27

    81

    Hour 19

    19:00

  • 27

    81

    Hour 20

    20:00

  • 27

    81

    Hour 21

    21:00

  • 27

    81

    Hour 22

    22:00

  • 26

    79

    Hour 23

    23:00

  • Thursday
  • 26

    79

    0:00

  • 26

    79

    1:00

  • 25

    77

    2:00

  • 25

    77

    3:00

  • 25

    77

    4:00

    • 06:00

      Partly cloudy

      26º

      79º

    • 07:00

      Partly cloudy

      27º

      81º

    • 08:00

      Patchy rain possible

      28º

      82º

    • 09:00

      Partly cloudy

      29º

      84º

    • 10:00

      Patchy rain possible

      30º

      86º

    • 11:00

      Patchy rain possible

      30º

      86º

    • 12:00

      Patchy rain possible

      30º

      86º

    • 13:00

      Patchy rain possible

      31º

      88º

    • 14:00

      Clear

      30º

      86º

    • 15:00

      Patchy rain possible

      30º

      86º

    • 16:00

      Clear

      30º

      86º

    • 17:00

      Partly cloudy

      29º

      84º

    • 18:00

      Clear

      28º

      82º

    • 18 06

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 19:00

      Partly cloudy

      27º

      81º

    • 20:00

      Partly cloudy

      27º

      81º

    • 21:00

      Partly cloudy

      27º

      81º

    • 22:00

      Partly cloudy

      27º

      81º

    • 23:00

      Partly cloudy

      26º

      79º

    • 00:00

      Thu

      Partly cloudy

      27º

      81º

    • 01:00

      Partly cloudy

      27º

      81º

    • 02:00

      Partly cloudy

      27º

      81º

    • 03:00

      Partly cloudy

      27º

      81º

    • 04:00

      Partly cloudy

      26º

      79º

    • 05:00

      Partly cloudy

      26º

      79º

    • 05 34

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
    We only display hourly forecasts for up to 14 days 😢
    We only display hourly forecasts for up to 14 days 😢
    • 06:00

      Moderate rain at times

      27º

      81º

    • 07:00

      Moderate rain at times

      27º

      81º

    • 08:00

      Patchy rain possible

      28º

      82º

    • 09:00

      Patchy rain possible

      29º

      84º

    • 10:00

      Patchy rain possible

      29º

      84º

    • 11:00

      Patchy rain possible

      29º

      84º

    • 12:00

      Patchy rain possible

      29º

      84º

    • 13:00

      Moderate rain at times

      29º

      84º

    • 14:00

      Moderate rain at times

      29º

      84º

    • 15:00

      Moderate rain at times

      29º

      84º

    • 16:00

      Moderate rain at times

      29º

      84º

    • 17:00

      Moderate rain at times

      28º

      82º

    • 18:00

      Moderate rain at times

      28º

      82º

    • 18 05

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 19:00

      Patchy rain possible

      28º

      82º

    • 20:00

      Patchy rain possible

      28º

      82º

    • 21:00

      Patchy rain possible

      28º

      82º

    • 22:00

      Patchy rain possible

      27º

      81º

    • 23:00

      Patchy rain possible

      27º

      81º

    • 00:00

      Fri

      Patchy rain possible

      27º

      81º

    • 01:00

      Patchy rain possible

      27º

      81º

    • 02:00

      Patchy rain possible

      27º

      81º

    • 03:00

      Patchy rain possible

      27º

      81º

    • 04:00

      Patchy rain possible

      27º

      81º

    • 05:00

      Patchy rain possible

      27º

      81º

    • 05 34

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
    We only display hourly forecasts for up to 14 days 😢
    We only display hourly forecasts for up to 14 days 😢
    • 06:00

      Moderate rain at times

      27º

      81º

    • 07:00

      Patchy rain possible

      27º

      81º

    • 08:00

      Patchy rain possible

      28º

      82º

    • 09:00

      Patchy rain possible

      29º

      84º

    • 10:00

      Patchy rain possible

      29º

      84º

    • 11:00

      Patchy rain possible

      29º

      84º

    • 12:00

      Moderate rain at times

      29º

      84º

    • 13:00

      Moderate rain at times

      29º

      84º

    • 14:00

      Moderate rain at times

      29º

      84º

    • 15:00

      Moderate rain at times

      29º

      84º

    • 16:00

      Moderate rain at times

      29º

      84º

    • 17:00

      Patchy rain possible

      28º

      82º

    • 18:00

      Moderate rain at times

      28º

      82º

    • 18 04

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 19:00

      Patchy rain possible

      28º

      82º

    • 20:00

      Patchy rain possible

      27º

      81º

    • 21:00

      Patchy rain possible

      27º

      81º

    • 22:00

      Moderate rain at times

      27º

      81º

    • 23:00

      Moderate rain at times

      27º

      81º

    • 00:00

      Sat

      Moderate rain at times

      27º

      81º

    • 01:00

      Moderate rain at times

      27º

      81º

    • 02:00

      Moderate rain at times

      27º

      81º

    • 03:00

      Moderate rain at times

      27º

      81º

    • 04:00

      Moderate rain at times

      27º

      81º

    • 05:00

      Moderate rain at times

      27º

      81º

    • 05 34

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
    We only display hourly forecasts for up to 14 days 😢
    We only display hourly forecasts for up to 14 days 😢
    • 06:00

      Moderate rain at times

      27º

      81º

    • 07:00

      Patchy rain possible

      27º

      81º

    • 08:00

      Moderate rain at times

      28º

      82º

    • 09:00

      Moderate rain at times

      29º

      84º

    • 10:00

      Moderate rain at times

      29º

      84º

    • 11:00

      Moderate rain at times

      29º

      84º

    • 12:00

      Moderate rain at times

      29º

      84º

    • 13:00

      Patchy rain possible

      30º

      86º

    • 14:00

      Moderate rain at times

      29º

      84º

    • 15:00

      Patchy rain possible

      29º

      84º

    • 16:00

      Patchy rain possible

      29º

      84º

    • 17:00

      Patchy rain possible

      29º

      84º

    • 18:00

      Patchy rain possible

      28º

      82º

    • 18 03

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 19:00

      Patchy rain possible

      28º

      82º

    • 20:00

      Patchy rain possible

      28º

      82º

    • 21:00

      Patchy rain possible

      28º

      82º

    • 22:00

      Patchy rain possible

      28º

      82º

    • 23:00

      Patchy rain possible

      27º

      81º

    • 00:00

      Sun

      Patchy rain possible

      27º

      81º

    • 01:00

      Patchy rain possible

      27º

      81º

    • 02:00

      Patchy rain possible

      27º

      81º

    • 03:00

      Patchy rain possible

      27º

      81º

    • 04:00

      Patchy rain possible

      27º

      81º

    • 05:00

      Patchy rain possible

      27º

      81º

    • 05 34

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
7
8
9
10
11
12
13
    We only display hourly forecasts for up to 14 days 😢
    We only display hourly forecasts for up to 14 days 😢
    • 06:00

      Moderate or heavy rain shower

      27º

      81º

    • 07:00

      Moderate rain at times

      28º

      82º

    • 08:00

      Patchy rain possible

      28º

      82º

    • 09:00

      Patchy rain possible

      29º

      84º

    • 10:00

      Patchy rain possible

      29º

      84º

    • 11:00

      Patchy rain possible

      29º

      84º

    • 12:00

      Heavy rain at times

      29º

      84º

    • 13:00

      Moderate rain at times

      29º

      84º

    • 14:00

      Moderate rain at times

      29º

      84º

    • 15:00

      Moderate rain at times

      29º

      84º

    • 16:00

      Patchy rain possible

      29º

      84º

    • 17:00

      Patchy rain possible

      28º

      82º

    • 18:00

      Patchy rain possible

      28º

      82º

    • 18 02

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 19:00

      Patchy rain possible

      28º

      82º

    • 20:00

      Patchy rain possible

      28º

      82º

    • 21:00

      Patchy rain possible

      28º

      82º

    • 22:00

      Patchy rain possible

      27º

      81º

    • 23:00

      Patchy rain possible

      27º

      81º

    • 00:00

      Mon

      Patchy rain possible

      27º

      81º

    • 01:00

      Patchy rain possible

      27º

      81º

    • 02:00

      Patchy rain possible

      27º

      81º

    • 03:00

      Patchy rain possible

      27º

      81º

    • 04:00

      Patchy rain possible

      27º

      81º

    • 05:00

      Patchy rain possible

      27º

      81º

    • 05 34

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
    We only display hourly forecasts for up to 14 days 😢
    We only display hourly forecasts for up to 14 days 😢
    • 06:00

      Moderate rain at times

      27º

      81º

    • 07:00

      Patchy rain possible

      27º

      81º

    • 08:00

      Patchy rain possible

      28º

      82º

    • 09:00

      Moderate rain at times

      28º

      82º

    • 10:00

      Moderate rain at times

      28º

      82º

    • 11:00

      Moderate rain at times

      29º

      84º

    • 12:00

      Moderate rain at times

      29º

      84º

    • 13:00

      Moderate rain at times

      29º

      84º

    • 14:00

      Moderate rain at times

      29º

      84º

    • 15:00

      Patchy rain possible

      29º

      84º

    • 16:00

      Moderate rain at times

      28º

      82º

    • 17:00

      Patchy rain possible

      28º

      82º

    • 18:00

      Patchy rain possible

      28º

      82º

    • 18 01

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 19:00

      Patchy rain possible

      27º

      81º

    • 20:00

      Patchy rain possible

      27º

      81º

    • 21:00

      Patchy rain possible

      27º

      81º

    • 22:00

      Moderate rain at times

      27º

      81º

    • 23:00

      Patchy rain possible

      27º

      81º

    • 00:00

      Tue

      Patchy rain possible

      27º

      81º

    • 01:00

      Patchy rain possible

      27º

      81º

    • 02:00

      Patchy rain possible

      27º

      81º

    • 03:00

      Patchy rain possible

      27º

      81º

    • 04:00

      Patchy rain possible

      27º

      81º

    • 05:00

      Patchy rain possible

      26º

      79º

    • 05 34

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
    We only display hourly forecasts for up to 14 days 😢
    We only display hourly forecasts for up to 14 days 😢
    • 06:00

      Heavy rain at times

      27º

      81º

    • 07:00

      Moderate rain at times

      27º

      81º

    • 08:00

      Moderate rain at times

      28º

      82º

    • 09:00

      Patchy rain possible

      28º

      82º

    • 10:00

      Patchy rain possible

      28º

      82º

    • 11:00

      Moderate rain at times

      29º

      84º

    • 12:00

      Patchy rain possible

      29º

      84º

    • 13:00

      Moderate rain at times

      29º

      84º

    • 14:00

      Moderate rain at times

      29º

      84º

    • 15:00

      Patchy rain possible

      29º

      84º

    • 16:00

      Patchy rain possible

      29º

      84º

    • 17:00

      Patchy rain possible

      28º

      82º

    • 18:00

      Patchy rain possible

      28º

      82º

    • 18 00

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 19:00

      Patchy rain possible

      28º

      82º

    • 20:00

      Patchy rain possible

      27º

      81º

    • 21:00

      Patchy rain possible

      27º

      81º

    • 22:00

      Moderate rain at times

      27º

      81º

    • 23:00

      Moderate rain at times

      27º

      81º

    • 00:00

      Wed

      Moderate rain at times

      27º

      81º

    • 01:00

      Moderate rain at times

      27º

      81º

    • 02:00

      Moderate rain at times

      27º

      81º

    • 03:00

      Moderate rain at times

      27º

      81º

    • 04:00

      Moderate rain at times

      27º

      81º

    • 05:00

      Moderate rain at times

      27º

      81º

    • 05 34

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
    We only display hourly forecasts for up to 14 days 😢
    We only display hourly forecasts for up to 14 days 😢
    • 06:00

      Heavy rain at times

      27º

      81º

    • 07:00

      Moderate rain at times

      27º

      81º

    • 08:00

      Moderate rain at times

      28º

      82º

    • 09:00

      Moderate rain at times

      28º

      82º

    • 10:00

      Moderate rain at times

      29º

      84º

    • 11:00

      Moderate rain at times

      29º

      84º

    • 12:00

      Heavy rain at times

      29º

      84º

    • 13:00

      Moderate or heavy rain shower

      29º

      84º

    • 14:00

      Heavy rain at times

      29º

      84º

    • 15:00

      Patchy rain possible

      29º

      84º

    • 16:00

      Patchy rain possible

      28º

      82º

    • 17:00

      Patchy rain possible

      28º

      82º

    • 17 59

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 18:00

      Patchy rain possible

      28º

      82º

    • 19:00

      Patchy rain possible

      27º

      81º

    • 20:00

      Patchy rain possible

      27º

      81º

    • 21:00

      Patchy rain possible

      27º

      81º

    • 22:00

      Patchy rain possible

      27º

      81º

    • 23:00

      Patchy rain possible

      27º

      81º

    • 00:00

      Thu

      Patchy rain possible

      27º

      81º

    • 01:00

      Patchy rain possible

      27º

      81º

    • 02:00

      Patchy rain possible

      27º

      81º

    • 03:00

      Patchy rain possible

      27º

      81º

    • 04:00

      Patchy rain possible

      26º

      79º

    • 05:00

      Patchy rain possible

      26º

      79º

    • 05 35

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
    We only display hourly forecasts for up to 14 days 😢
    We only display hourly forecasts for up to 14 days 😢
    • 06:00

      Moderate rain at times

      26º

      79º

    • 07:00

      Moderate rain at times

      27º

      81º

    • 08:00

      Patchy rain possible

      28º

      82º

    • 09:00

      Patchy rain possible

      28º

      82º

    • 10:00

      Patchy rain possible

      28º

      82º

    • 11:00

      Patchy rain possible

      29º

      84º

    • 12:00

      Heavy rain at times

      29º

      84º

    • 13:00

      Heavy rain at times

      29º

      84º

    • 14:00

      Heavy rain at times

      29º

      84º

    • 15:00

      Moderate or heavy rain shower

      29º

      84º

    • 16:00

      Moderate or heavy rain shower

      28º

      82º

    • 17:00

      Moderate or heavy rain shower

      28º

      82º

    • 17 59

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 18:00

      Heavy rain at times

      28º

      82º

    • 19:00

      Patchy rain possible

      27º

      81º

    • 20:00

      Patchy rain possible

      27º

      81º

    • 21:00

      Patchy rain possible

      27º

      81º

    • 22:00

      Moderate rain at times

      27º

      81º

    • 23:00

      Moderate rain at times

      27º

      81º

    • 00:00

      Fri

      Moderate rain at times

      27º

      81º

    • 01:00

      Moderate rain at times

      27º

      81º

    • 02:00

      Moderate rain at times

      26º

      79º

    • 03:00

      Moderate rain at times

      26º

      79º

    • 04:00

      Moderate rain at times

      26º

      79º

    • 05:00

      Moderate rain at times

      26º

      79º

    • 05 35

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
    We only display hourly forecasts for up to 14 days 😢
    We only display hourly forecasts for up to 14 days 😢
    • 06:00

      Heavy rain at times

      26º

      79º

    • 07:00

      Moderate rain at times

      27º

      81º

    • 08:00

      Moderate rain at times

      27º

      81º

    • 09:00

      Moderate rain at times

      28º

      82º

    • 10:00

      Moderate rain at times

      28º

      82º

    • 11:00

      Heavy rain at times

      28º

      82º

    • 12:00

      Moderate or heavy rain shower

      28º

      82º

    • 13:00

      Moderate or heavy rain shower

      28º

      82º

    • 14:00

      Moderate rain at times

      29º

      84º

    • 15:00

      Patchy rain possible

      29º

      84º

    • 16:00

      Patchy rain possible

      28º

      82º

    • 17:00

      Patchy rain possible

      28º

      82º

    • 17 58

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 18:00

      Patchy rain possible

      27º

      81º

    • 19:00

      Patchy rain possible

      27º

      81º

    • 20:00

      Patchy rain possible

      27º

      81º

    • 21:00

      Patchy rain possible

      27º

      81º

    • 22:00

      Patchy rain possible

      27º

      81º

    • 23:00

      Patchy rain possible

      27º

      81º

    • 00:00

      Sat

      Patchy rain possible

      26º

      79º

    • 01:00

      Patchy rain possible

      26º

      79º

    • 02:00

      Patchy rain possible

      26º

      79º

    • 03:00

      Patchy rain possible

      26º

      79º

    • 04:00

      Patchy rain possible

      26º

      79º

    • 05:00

      Patchy rain possible

      26º

      79º

    • 05 35

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
    We only display hourly forecasts for up to 14 days 😢
    We only display hourly forecasts for up to 14 days 😢
    • 06:00

      Moderate rain at times

      26º

      79º

    • 07:00

      Moderate rain at times

      27º

      81º

    • 08:00

      Moderate rain at times

      27º

      81º

    • 09:00

      Moderate rain at times

      28º

      82º

    • 10:00

      Patchy rain possible

      28º

      82º

    • 11:00

      Moderate rain at times

      28º

      82º

    • 12:00

      Moderate rain at times

      28º

      82º

    • 13:00

      Patchy rain possible

      28º

      82º

    • 14:00

      Patchy rain possible

      29º

      84º

    • 15:00

      Moderate rain at times

      29º

      84º

    • 16:00

      Moderate rain at times

      28º

      82º

    • 17:00

      Patchy rain possible

      28º

      82º

    • 17 57

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 18:00

      Patchy rain possible

      27º

      81º

    • 19:00

      Patchy rain possible

      27º

      81º

    • 20:00

      Patchy rain possible

      27º

      81º

    • 21:00

      Patchy rain possible

      26º

      79º

    • 22:00

      Patchy rain possible

      26º

      79º

    • 23:00

      Patchy rain possible

      26º

      79º

    • 00:00

      Sun

      Patchy rain possible

      26º

      79º

    • 01:00

      Patchy rain possible

      26º

      79º

    • 02:00

      Patchy rain possible

      26º

      79º

    • 03:00

      Patchy rain possible

      26º

      79º

    • 04:00

      Patchy rain possible

      26º

      79º

    • 05:00

      Patchy rain possible

      25º

      77º

    • 05 35

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
14
15
16 Avg -
17 Avg -
18 Avg -
19 Avg -
20 Avg -
    We only display hourly forecasts for up to 14 days 😢
    We only display hourly forecasts for up to 14 days 😢
    • 06:00

      Moderate rain at times

      26º

      79º

    • 07:00

      Patchy rain possible

      26º

      79º

    • 08:00

      Patchy rain possible

      27º

      81º

    • 09:00

      Patchy rain possible

      28º

      82º

    • 10:00

      Patchy rain possible

      28º

      82º

    • 11:00

      Moderate rain at times

      28º

      82º

    • 12:00

      Moderate rain at times

      29º

      84º

    • 13:00

      Moderate rain at times

      29º

      84º

    • 14:00

      Patchy rain possible

      29º

      84º

    • 15:00

      Patchy rain possible

      29º

      84º

    • 16:00

      Patchy rain possible

      28º

      82º

    • 17:00

      Patchy rain possible

      28º

      82º

    • 17 56

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 18:00

      Patchy rain possible

      27º

      81º

    • 19:00

      Patchy rain possible

      27º

      81º

    • 20:00

      Partly cloudy

      27º

      81º

    • 21:00

      Patchy rain possible

      27º

      81º

    • 22:00

      Patchy rain possible

      27º

      81º

    • 23:00

      Patchy rain possible

      26º

      79º

    • 00:00

      Mon

      Patchy rain possible

      26º

      79º

    • 01:00

      Patchy rain possible

      26º

      79º

    • 02:00

      Patchy rain possible

      26º

      79º

    • 03:00

      Patchy rain possible

      26º

      79º

    • 04:00

      Patchy rain possible

      26º

      79º

    • 05:00

      Patchy rain possible

      26º

      79º

    • 05 35

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
    We only display hourly forecasts for up to 14 days 😢
    We only display hourly forecasts for up to 14 days 😢
    • 06:00

      Patchy rain possible

      26º

      79º

    • 07:00

      Patchy rain possible

      27º

      81º

    • 08:00

      Patchy rain possible

      27º

      81º

    • 09:00

      Patchy rain possible

      28º

      82º

    • 10:00

      Patchy rain possible

      29º

      84º

    • 11:00

      Patchy rain possible

      29º

      84º

    • 12:00

      Patchy rain possible

      29º

      84º

    • 13:00

      Moderate rain at times

      29º

      84º

    • 14:00

      Moderate rain at times

      29º

      84º

    • 15:00

      Heavy rain at times

      29º

      84º

    • 16:00

      Moderate rain at times

      29º

      84º

    • 17:00

      Moderate rain at times

      28º

      82º

    • 17 55

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 18:00

      Moderate rain at times

      28º

      82º

    • 19:00

      Patchy rain possible

      28º

      82º

    • 20:00

      Patchy rain possible

      27º

      81º

    • 21:00

      Patchy rain possible

      27º

      81º

    • 22:00

      Patchy rain possible

      27º

      81º

    • 23:00

      Patchy rain possible

      27º

      81º

21 Avg -
22 Avg -
23 Avg -
24 Avg -
25 Avg -
26 Avg -
27 Avg -
28 Avg -
29 Avg -
30 Avg -
Forecast
Avg Historical Daily Average

What's the weather like in Ha Long Bay in September

Temperature

It is the start of the end of summer months in September in Ha Long Bay, which is located in Vietnam, with an average temperature of 28°C which is the second hottest temperature in the year along with May which also has an average temperature of 28°C. With temperatures at their warmest, you will be able to enjoy days out discovering the island, seeing the floating villages and going to see the Bai Chai Bridge. During this summer month, you might see temperatures high of up to 31°C which is the second highest in the year along with July which can also see highs of up to 31°C, or lows of 24°C which is still very warm.

Rainfall

While the weather is gloriously warm, the average monthly rainfall in September is 190mm which falls over an average of 14 days. While this may seem high, it is considerably lower than the month before when it is 265mm over 16 days. 

Sunshine Hours

During the summer month, you will get an average of 7 hours of sunshine which is the second highest in the year along with October, January, February and July which also has 7 hours of sunshine. Because of the warm weather and reduced rainfall, you should be able to have some great days out but make sure to check the weather forecast before booking anything.

Sea Temperature

If you like to enjoy a swim in the sea then you will be pleased to know that the average sea temperature in September is a very warm 27°C which is actually the second lowest in the year along with October, June and July which also has an average sea temperature of 27°C. This is a lovely warming temperature that will let you enjoy hours of fun in the sea without feeling uncomfortable.

Clouds

The chance of there being a cloudy day in September is 54% which is lower than in August when it is 59% but higher than in October when it is 49%. While the rainfall may seem quite high in Ha Long Bay during September, it is 70% higher in the neighbouring holiday destination, Mai Chau where it is 323mm which falls over an average of 16 days.

Ha Long Bay Hotels for September

Halong Dream Hotel

If you're after a bit of luxury to treat yourself this year then why not go for the Halong Dream Hotel which is a 4 star hotel located near Bai Chay. This is a great choice for couples and is very reasonably priced. There are 188 rooms in total with a choice of superior double rooms, deluxe double rooms and executive suites which all have a sea view, breakfast included, air conditioning and complimentary bottled water. You can find activities at the hotel including a fitness centre, massages, kid's pool and steam room plus many more.

Halong Plaza Hotel

One of the most popular hotels to stay in is the Halong Plaza Hotel which is a 3 star hotel located in Bai Chay. This is a very popular hotel choice for couples and boasts stunning views. It has 200 rooms available with a choice of superior double rooms, deluxe double rooms and junior suites which all have a flat screen TV, air conditioning, satellite channels and minibar.

Search for your next stay in Ha Long Bay Choose from millions of homes, hotels and other properties all over the world

Ha Long Bay Beaches in September

Tuan Chau Island

If you're a beach person and love a good swim in the sea when on holiday then head to the Tuan Chau Island which has a glorious beach to enjoy. You can get to this beach on one of the day cruises so ask around the different cruise companies. It is a 3km artificial beach with plenty of activities to do on and around the beach. You can also relax and take in the stunning scenery that sits all around you.

Bars and Restaurants

 

Things to do in Ha Long Bay in September

Cua Van Floating Village

A great day out to do while temperatures are warm and rainfall is starting to reduce is to go and see the Cua Van Floating Village which is a point of interest is a must see. The government are trying to relocate those living in the floating village onto land so make sure to go and see it while it still inhabited. It is truly amazing to see how the people of the floating village live and even go to school; it is an experience you will always remember.

Ha Long Pearl

If you love to do a bit of shopping and buy souvenirs to always bring back memories then visit the Ha Long Pearl which is a specialty gift shop located in Ha Long Bay. You will be able to discover pearls in all their natural beauty with the shop owners having to wait for 6 years to see if they have even have pearls in. The friendly and welcoming staff will show you just how these beautiful pearls are formed as well as having pearls in everyone's price range.