Historical weather statistics for Vientiane, Laos
Typical weather in Vientiane
April is typically the warmest month, with median daily highs near 34.3 °C and lows near 25.0 °C. December is typically the coolest month, with median daily highs near 27.3 °C and lows near 16.9 °C. Median precipitation probability is highest in August, at about 86.7 %. Median relative humidity reaches its annual high in August, at about 96.2 %. These are historical climate statistics, not a day-to-day forecast.
Monthly values are medians of historical daily weather statistics. They describe typical conditions and are not a forecast.
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| Month | Daily max temperature (°C) | Daily min temperature (°C) | Wind chance (%) | Humidity (%) | Precipitation chance (%) | Snow depth (cm) |
|---|---|---|---|---|---|---|
| January | 27.6 °C | 16.9 °C | 0.0 % | 89.0 % | 0.0 % | 0.0 cm |
| February | 30.3 °C | 19.0 °C | 0.0 % | 88.0 % | 2.0 % | 0.0 cm |
| March | 33.4 °C | 22.8 °C | 0.0 % | 87.5 % | 20.7 % | 0.0 cm |
| April | 34.3 °C | 25.0 °C | 0.0 % | 88.3 % | 37.5 % | 0.0 cm |
| May | 32.4 °C | 24.9 °C | 0.0 % | 93.5 % | 74.3 % | 0.0 cm |
| June | 31.3 °C | 25.0 °C | 0.0 % | 95.2 % | 76.0 % | 0.0 cm |
| July | 30.8 °C | 24.7 °C | 0.0 % | 95.7 % | 85.7 % | 0.0 cm |
| August | 30.4 °C | 24.4 °C | 0.0 % | 96.2 % | 86.7 % | 0.0 cm |
| September | 30.3 °C | 24.1 °C | 0.0 % | 96.2 % | 78.2 % | 0.0 cm |
| October | 30.1 °C | 23.2 °C | 0.0 % | 94.2 % | 23.3 % | 0.0 cm |
| November | 29.8 °C | 21.2 °C | 0.0 % | 91.2 % | 2.3 % | 0.0 cm |
| December | 27.3 °C | 16.9 °C | 0.0 % | 89.5 % | 0.0 % | 0.0 cm |