When is the best time to visit Vientiane?
- The best time for a sun tanning holiday is March, April, May. Average maximum temperatures are up to +95°F in April and it has 6 sunny days on average.
- In general, it’s pleasant to walk and do outdoor activities during January - December.
- If you want to avoid wet weather, then your choice is July, August, September with the lowest chance of rain.
Average weather in Vientiane in different months
In January, February, November, December the weather is great. There are an average of 17 sunny days in January and the temperature ranges from +63°F to +84°F.
March usually has good weather. Average maximum temperature reaches +93°F during March.
In April, June, July, August, September, October the weather is average. Expect around 135 rainy days, and the precipitation amounts to approximately 373 mm in August.
May bring not the best weather. May is the coldest month with the temperature going down to +77°F.
Climate in Vientiane
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum Temperature | |||||||||||
| +97°F | +100°F | +104°F | +111°F | +109°F | +102°F | +104°F | +99°F | +97°F | +97°F | +97°F | +93°F |
| Average Maximum Temperature | |||||||||||
| +84°F | +88°F | +93°F | +95°F | +91°F | +90°F | +90°F | +88°F | +88°F | +88°F | +86°F | +82°F |
| Minimum Temperature | |||||||||||
| +46°F | +50°F | +50°F | +63°F | +70°F | +66°F | +72°F | +73°F | +70°F | +59°F | +50°F | +43°F |
| Avg. water temperature | |||||||||||
| - | - | - | - | - | - | - | - | - | - | - | - |
| Humidity, % | |||||||||||
| 71 | 69 | 67 | 69 | 78 | 82 | 83 | 84 | 83 | 79 | 73 | 70 |
| Rain, mm | |||||||||||
| 8 | 13 | 26 | 65 | 228 | 310 | 347 | 373 | 282 | 95 | 15 | 5 |
| Snow, mm | |||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Average wind speed, m/s | |||||||||||
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 |
| Sunny Days | |||||||||||
| 17 | 16 | 14 | 6 | 1 | 0 | 0 | 0 | 0 | 4 | 11 | 16 |
| Cloud Days | |||||||||||
| 11 | 8 | 8 | 7 | 3 | 2 | 1 | 1 | 2 | 9 | 14 | 13 |
| Rainy Days | |||||||||||
| 3 | 4 | 9 | 15 | 23 | 25 | 27 | 27 | 24 | 17 | 5 | 2 |
| Snowy Days | |||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Average Temperature
Humidity
Rain
FAQ
What is the hottest month in Vientiane?
What is the coldest month in Vientiane?
Is Vientiane worth visiting in winter?
When does it rain the least in Vientiane?
Other cities in Laos
Monthly weather in Vientiane
Source of the data
For this page, we’ve looked at the typical weather in Vientiane, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
