Average annual temperature is 22.4 °C
Absolute maximum temperature: 37.7 °C
Absolute minimum temperature: 5.4 °C
Number of sunny days: 129 days
Number of rainy days: 236 days
Look at detailed online map of Mường Sai
* Weather data for Mường Sai Vietnam is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 27.9 | 31.5 | 34.8 | 37.2 | 37.7 | 37.1 | 34.0 | 31.3 | 30.9 | 30.3 | 30.2 | 29.6 |
| Average daytime temperature (°C) | 21.9 | 26.2 | 28.2 | 32.3 | 33.4 | 30.9 | 31.1 | 28.6 | 28.5 | 27.7 | 25.7 | 23.0 |
| Average temperature (°C) | 14.9 | 19.2 | 21.3 | 25.5 | 26.8 | 25.5 | 26.0 | 24.6 | 24.3 | 22.7 | 20.1 | 17.6 |
| Average night temperature (°C) | 9.6 | 14.3 | 16.3 | 20.5 | 22.2 | 22.2 | 22.5 | 21.9 | 21.3 | 19.0 | 16.2 | 13.6 |
| Absolute minimum temperature (°C) | 5.4 | 9.7 | 12.2 | 17.0 | 18.8 | 20.4 | 21.5 | 20.2 | 19.6 | 16.2 | 11.6 | 6.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 11.0 | 11.5 | 12.0 | 12.6 | 13.1 | 13.4 | 13.3 | 12.8 | 12.3 | 11.7 | 11.1 | 10.9 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.6 | 8.4 | 7.9 | 9.8 | 10.2 | 8.5 | 10.5 | 6.8 | 9.1 | 9.8 | 8.9 | 7.4 |
| Precipitation (mm) | 3 | 20 | 38 | 28 | 86 | 380 | 225 | 418 | 193 | 39 | 30 | 10 |
| Sunny days | 27 | 18 | 12 | 16 | 8 | 0 | 0 | 2 | 1 | 12 | 14 | 19 |
| Rainy days | 4 | 10 | 19 | 14 | 23 | 30 | 31 | 29 | 29 | 19 | 16 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Mường Sai is at