Average annual temperature is 21.1 °C
Absolute maximum temperature: 35.5 °C
Absolute minimum temperature: 4.4 °C
Number of sunny days: 75 days
Number of rainy days: 290 days
Look at detailed online map of Bản Na Sai
* Weather data for Bản Na 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) | 24.8 | 26.9 | 29.8 | 32.6 | 35.5 | 33.6 | 32.7 | 30.5 | 30.3 | 28.6 | 26.6 | 26.2 |
| Average daytime temperature (°C) | 17.3 | 20.6 | 23.0 | 27.4 | 29.3 | 29.3 | 29.9 | 28.8 | 28.2 | 25.6 | 22.7 | 19.4 |
| Average temperature (°C) | 12.6 | 16.7 | 18.9 | 22.8 | 25.1 | 25.3 | 26.0 | 25.0 | 24.5 | 22.0 | 18.8 | 15.5 |
| Average night temperature (°C) | 7.8 | 13.4 | 15.6 | 19.2 | 21.5 | 22.2 | 22.6 | 21.9 | 21.3 | 18.5 | 15.4 | 12.5 |
| Absolute minimum temperature (°C) | 4.4 | 6.8 | 9.3 | 15.2 | 17.7 | 20.1 | 21.3 | 19.7 | 19.4 | 15.4 | 10.0 | 5.9 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.9 | 11.4 | 12.0 | 12.7 | 13.2 | 13.5 | 13.4 | 12.9 | 12.3 | 11.6 | 11.1 | 10.8 |
| 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) | 6.6 | 5.8 | 5.5 | 8.3 | 8.8 | 9.1 | 10.2 | 7.8 | 9.5 | 8.4 | 7.2 | 5.3 |
| Precipitation (mm) | 18 | 74 | 40 | 60 | 161 | 460 | 221 | 444 | 141 | 98 | 76 | 62 |
| Sunny days | 19 | 7 | 4 | 4 | 4 | 3 | 2 | 3 | 1 | 9 | 12 | 7 |
| Rainy days | 12 | 21 | 27 | 26 | 27 | 27 | 29 | 28 | 29 | 22 | 18 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Bản Na Sai during the most sunny months:
The largest precipitation sum in Bản Na Sai is at