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The best time to visit Vientiane
January, February, November and December — daytime highs around 29°C. Every number on this page is measured, not guessed.
Vientiane month by month
| Month | Day | Night | Wet days | |
|---|---|---|---|---|
| January | 27°C | 16°C | 1 | Best |
| February | 29°C | 18°C | 4 | Best |
| March | 32°C | 22°C | 9 | Shoulder |
| April | 33°C | 24°C | 10 | |
| May | 33°C | 25°C | 21 | |
| June | 31°C | 25°C | 25 | |
| July | 31°C | 25°C | 26 | |
| August | 31°C | 24°C | 27 | |
| September | 30°C | 24°C | 28 | |
| October | 30°C | 23°C | 15 | Shoulder |
| November | 30°C | 21°C | 3 | Best |
| December | 28°C | 17°C | 0 | Best |
The short version
Warmest: April, around 33°C by day. Coolest: January, around 27°C by day and 16°C at night. Wettest: September with about 28 wet days. Driest: December with about 0.
If you want fewer people: March, October sit right beside the best months. The weather is close and the crowds are not.
Book it for those months
Prices climb as the good months fill up.
Common questions
When is the best time to visit Vientiane?
The best months are January, February, November and December, when daytime highs sit around 29°C.
What is the hottest month in Vientiane?
April, with daytime highs around 33°C.
What is the wettest month in Vientiane?
September, with about 28 wet days. The driest is December with about 0.
When is the cheapest time to visit Vientiane?
Prices follow the weather. The months either side of the best ones — March, October — are usually cheaper with similar conditions.
Temperatures and wet days are measured, not estimated: ERA5 reanalysis for 2021-2023, at Vientiane, Vientiane Prefecture. Source: Open-Meteo.