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Belfast Harbour Weather in December, United Kingdom

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

    5°C
    41°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

    6°C
    43°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

    3°C
    37°F

December, 2025

Sun
Mon
1
Tue
2
Wed
3
Thu
4
Fri
5
Sat
6 Avg 41º
    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

      41º

    • 07:00

      Patchy rain possible

      41º

    • 08:00

      Patchy rain possible

      41º

    • 08 23

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
    • 09:00

      Patchy rain possible

      41º

    • 10:00

      Patchy rain possible

      43º

    • 11:00

      Patchy rain possible

      43º

    • 12:00

      Patchy rain possible

      45º

    • 13:00

      Patchy rain possible

      45º

    • 14:00

      Patchy rain possible

      45º

    • 15:00

      Patchy rain possible

      43º

    • 16:00

      Patchy rain possible

      43º

    • 16 03

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 17:00

      Patchy rain possible

      41º

    • 18:00

      Patchy rain possible

      41º

    • 19:00

      Patchy rain possible

      41º

    • 20:00

      Patchy rain possible

      41º

    • 21:00

      Patchy rain possible

      41º

    • 22:00

      Patchy rain possible

      41º

    • 23:00

      Patchy rain possible

      41º

    • 00:00

      Tue

      Patchy rain possible

      41º

    • 01:00

      Patchy rain possible

      41º

    • 02:00

      Patchy rain possible

      41º

    • 03:00

      Patchy rain possible

      39º

    • 04:00

      Patchy rain possible

      41º

    • 05:00

      Patchy rain possible

      41º

    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

      41º

    • 07:00

      Patchy rain possible

      41º

    • 08:00

      Patchy rain possible

      41º

    • 08 24

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
    • 09:00

      Patchy rain possible

      41º

    • 10:00

      Patchy rain possible

      41º

    • 11:00

      Patchy rain possible

      43º

    • 12:00

      Patchy rain possible

      43º

    • 13:00

      Patchy rain possible

      43º

    • 14:00

      Patchy rain possible

      43º

    • 15:00

      Patchy rain possible

      43º

    • 16:00

      Patchy rain possible

      41º

    • 16 02

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 17:00

      Patchy rain possible

      41º

    • 18:00

      Patchy rain possible

      41º

    • 19:00

      Patchy rain possible

      41º

    • 20:00

      Patchy rain possible

      39º

    • 21:00

      Patchy rain possible

      39º

    • 22:00

      Patchy rain possible

      39º

    • 23:00

      Patchy rain possible

      39º

    • 00:00

      Wed

      Patchy rain possible

      39º

    • 01:00

      Patchy rain possible

      39º

    • 02:00

      Patchy rain possible

      39º

    • 03:00

      Patchy rain possible

      39º

    • 04:00

      Patchy rain possible

      39º

    • 05:00

      Patchy rain possible

      39º

    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

      39º

    • 07:00

      Patchy rain possible

      39º

    • 08:00

      Patchy rain possible

      39º

    • 08 26

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
    • 09:00

      Patchy rain possible

      39º

    • 10:00

      Patchy rain possible

      39º

    • 11:00

      Patchy rain possible

      41º

    • 12:00

      Patchy rain possible

      41º

    • 13:00

      Patchy rain possible

      41º

    • 14:00

      Patchy rain possible

      41º

    • 15:00

      Patchy rain possible

      41º

    • 16:00

      Patchy rain possible

      41º

    • 16 01

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 17:00

      Patchy rain possible

      41º

    • 18:00

      Patchy rain possible

      39º

    • 19:00

      Patchy rain possible

      39º

    • 20:00

      Patchy rain possible

      39º

    • 21:00

      Patchy rain possible

      39º

    • 22:00

      Patchy rain possible

      39º

    • 23:00

      Patchy rain possible

      39º

    • 00:00

      Thu

      Patchy rain possible

      39º

    • 01:00

      Patchy rain possible

      39º

    • 02:00

      Patchy rain possible

      39º

    • 03:00

      Patchy rain possible

      39º

    • 04:00

      Patchy rain possible

      37º

    • 05:00

      Patchy rain possible

      37º

    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

      37º

    • 07:00

      Patchy rain possible

      37º

    • 08:00

      Patchy rain possible

      37º

    • 08 27

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
    • 09:00

      Patchy rain possible

      39º

    • 10:00

      Patchy rain possible

      39º

    • 11:00

      Patchy rain possible

      41º

    • 12:00

      Patchy rain possible

      43º

    • 13:00

      Patchy rain possible

      43º

    • 14:00

      Patchy rain possible

      43º

    • 15:00

      Patchy rain possible

      43º

    • 16:00

      Patchy rain possible

      41º

    • 16 01

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 17:00

      Patchy rain possible

      41º

    • 18:00

      Patchy rain possible

      41º

    • 19:00

      Patchy rain possible

      41º

    • 20:00

      Patchy rain possible

      41º

    • 21:00

      Patchy rain possible

      41º

    • 22:00

      Patchy rain possible

      41º

    • 23:00

      Patchy rain possible

      41º

    • 00:00

      Fri

      Patchy rain possible

      41º

    • 01:00

      Patchy rain possible

      41º

    • 02:00

      Patchy rain possible

      41º

    • 03:00

      Patchy rain possible

      41º

    • 04:00

      Patchy rain possible

      41º

    • 05:00

      Patchy rain possible

      41º

    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

      41º

    • 07:00

      Patchy rain possible

      41º

    • 08:00

      Patchy rain possible

      41º

    • 08 28

      SUNRISE https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunrise.png
    • 09:00

      Patchy rain possible

      41º

    • 10:00

      Patchy rain possible

      41º

    • 11:00

      Patchy rain possible

      43º

    • 12:00

      Patchy rain possible

      45º

    • 13:00

      Patchy rain possible

      45º

    • 14:00

      Patchy rain possible

      43º

    • 15:00

      Patchy rain possible

      43º

    • 16:00

      Patchy rain possible

      43º

    • 16 00

      SUNSET https://assets.holiday-weather.com/images/mobile/weather_icons/png/sunset.png
    • 17:00

      Patchy rain possible

      43º

    • 18:00

      Patchy rain possible

      43º

    • 19:00

      Patchy rain possible

      41º

    • 20:00

      Patchy rain possible

      41º

    • 21:00

      Patchy rain possible

      41º

    • 22:00

      Patchy rain possible

      41º

    • 23:00

      Patchy rain possible

      41º

7 Avg 43º
8 Avg 43º
9 Avg 46º
10 Avg 41º
11 Avg 39º
12 Avg 41º
13 Avg 39º
14 Avg 43º
15 Avg 45º
16 Avg 43º
17 Avg 46º
18 Avg 46º
19 Avg 45º
20 Avg 45º
21 Avg 46º
22 Avg 48º
23 Avg 45º
24 Avg 41º
25 Avg 37º
26 Avg 43º
27 Avg 43º
28 Avg 45º
29 Avg 43º
30 Avg 45º
31 Avg 46º
Forecast
Avg Historical Daily Average
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