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Vientiane, Laos Weather Averages

May is the hottest month in Vientiane with an average temperature of 29°C (84°F) and the coldest is January at 22°C (72°F). The wettest month is July with an average of 120mm of rain..

Average Temperature Vientiane

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
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

Average High Low Temperature Vientiane

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

Average Rainfall Vientiane

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
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

Vientiane : Next 24-Hour Weather

Today - 30th October 2026

Sunrise 06:07

Sunrise

Sunset 17:38

Sunset
21:00
Cloudy
25°C (76°F)
22:00
Patchy rain possible
26°C (78°F)
23:00
Partly cloudy
24°C (75°F)

Tomorrow - 31st October 2026

Sunrise 06:07

Sunrise

Sunset 17:38

Sunset
0:00
Partly cloudy
24°C (75°F)
1:00
Mist
24°C (74°F)
2:00
Partly cloudy
23°C (73°F)
3:00
Light drizzle
23°C (73°F)
4:00
Light rain shower
24°C (74°F)
5:00
Patchy rain possible
23°C (72°F)
6:00
Patchy rain possible
23°C (72°F)
7:00
Patchy rain possible
24°C (75°F)
8:00
Cloudy
26°C (78°F)
9:00
Clear
28°C (81°F)
10:00
Patchy rain possible
29°C (84°F)
11:00
Clear
31°C (88°F)
12:00
Cloudy
32°C (90°F)
13:00
Patchy rain possible
32°C (89°F)
14:00
Overcast
33°C (91°F)
15:00
Overcast
33°C (91°F)
16:00
Patchy rain possible
32°C (88°F)
17:00
Thundery outbreaks possible
30°C (86°F)
18:00
Cloudy
28°C (81°F)
19:00
Cloudy
27°C (80°F)
20:00
Partly cloudy
27°C (79°F)
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