Best Time to Visit Vientiane
Laos · 30-year monthly climate averages
☀️ When to go
Based on 30 years of climate data, the most comfortable months to visit Vientiane are January, November and December, when daytime temperatures are agreeable and rainfall is relatively low.
Climate profile
Vientiane sees its warmest weather in April, when daytime highs average around 35°C, and its coolest in December (around 29°C).
Annual precipitation totals roughly 1663mm — August is typically the wettest month (~341mm) and December the driest (~5mm).
A distinctly wetter period runs from May to September — worth planning around if you prefer dry days.
November is the sunniest month, with about 225 hours of sunshine.
Year at a glance
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
🔥 Recent heat vs normal
Daily forecast highs vs the 30-year normal — last 37 days
Each bar is one day: orange above normal, blue below.
Month by month
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 29° / 18°C | 7mm | 🌟 Great |
| February | 31° / 19°C | 17mm | 👍 Good |
| March | 33° / 22°C | 44mm | 🤔 Fair |
| April | 35° / 24°C | 89mm | 🤔 Fair |
| May | 34° / 25°C | 226mm | ⚠️ Challenging |
| June | 33° / 25°C | 264mm | ⚠️ Challenging |
| July | 32° / 25°C | 300mm | ⚠️ Challenging |
| August | 31° / 25°C | 341mm | ⚠️ Challenging |
| September | 32° / 25°C | 265mm | ⚠️ Challenging |
| October | 32° / 24°C | 87mm | 🤔 Fair |
| November | 31° / 22°C | 18mm | 👍 Good |
| December | 29° / 19°C | 5mm | 🌟 Great |
FAQ
- What is the best time to visit Vientiane?
- Based on 30 years of climate data, the most comfortable months to visit Vientiane are January, November and December, when daytime temperatures are agreeable and rainfall is relatively low.
- What is the hottest month in Vientiane?
- April is typically the hottest month in Vientiane, with average daytime highs around 35°C.
- What is the rainiest month in Vientiane?
- August is usually the wettest month, with around 341mm of precipitation.