Average annual temperature is 23.2 °C
Absolute maximum temperature: 38.8 °C
Absolute minimum temperature: 6.0 °C
Number of sunny days: 96 days
Number of rainy days: 269 days
Look at detailed online map of Nậm Sai
* Weather data for Nậm 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) | 29.9 | 34.0 | 37.2 | 36.8 | 38.8 | 37.5 | 37.9 | 33.6 | 32.9 | 31.4 | 29.9 | 28.9 |
| Average daytime temperature (°C) | 19.8 | 23.6 | 26.3 | 31.3 | 32.4 | 32.0 | 34.0 | 30.4 | 28.7 | 27.4 | 24.7 | 21.4 |
| Average temperature (°C) | 15.2 | 19.1 | 21.2 | 25.7 | 27.2 | 27.2 | 28.3 | 26.5 | 25.1 | 23.7 | 20.9 | 17.9 |
| Average night temperature (°C) | 11.1 | 15.6 | 17.2 | 22.1 | 23.9 | 24.2 | 24.5 | 23.6 | 22.5 | 20.7 | 17.7 | 14.8 |
| Absolute minimum temperature (°C) | 6.0 | 9.1 | 11.7 | 17.2 | 19.9 | 22.7 | 22.6 | 21.1 | 21.3 | 17.4 | 12.9 | 6.9 |
| 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 | 11.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.1 | 13.3 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 11.0 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 11.0 | 10.0 |
| Sunshine mean duration (h) | 6.3 | 6.1 | 6.8 | 8.3 | 9.7 | 8.6 | 10.4 | 7.0 | 7.1 | 8.5 | 7.9 | 5.7 |
| Precipitation (mm) | 41 | 49 | 28 | 86 | 145 | 209 | 181 | 290 | 345 | 87 | 113 | 39 |
| Sunny days | 16 | 7 | 10 | 9 | 9 | 2 | 3 | 3 | 1 | 12 | 11 | 13 |
| Rainy days | 15 | 21 | 21 | 21 | 22 | 28 | 28 | 28 | 29 | 19 | 19 | 18 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Nậm Sai during the most sunny months:
The largest precipitation sum in Nậm Sai is at