Vientiane weather

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The weather guide for Vientiane, Laos shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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Which is the hottest month in Vientiane?

The hottest time of year in Vientiane is normally April. Expect maximum daytime temperatures to reach 36°C with very high heat and humidity.

Which month has the most rain in Vientiane?

In terms of rainfall, August is usually the wettest month in Vientiane with 332mm on average. There are normally 24 days in August with some rain.

When is it sunniest in Vientiane?

The sunniest time of year in Vientiane is normally December with bright sunshine on average for 75% of daylight hours; that's 8 hours of sunshine per day.

Metric (°C / mm)  |  Imperial (°F / inches)

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Compare Vientiane weather with the USA

Below the Vientiane weather chart shows average maximum daytime temperature for Vientiane, Laos and the USA (Washington).

Maximum daytime temperature (°C)

Vientiane, Laos
USA (Washington)
29
5
32
7
35
13
36
19
34
24
33
29
32
31
32
30
32
26
31
20
30
14
29
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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Tropical storm risk: Vientiane, Laos typhoon season

% of month affected by tropical storms
0
0
0
0
0
<1%
1.8%
2.7%
3.9%
3%
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

The Vientiane, Laos tropical storm risk chart above shows the typhoon season. The chart was processed from data supplied by the US Meteorological Agency (NOAA). Find out more about our data sources.

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