Average annual temperature is 26.4 °C
Absolute maximum temperature: 42.0 °C
Absolute minimum temperature: 11.0 °C
Number of sunny days: 153 days
Number of rainy days: 212 days
Look at detailed online map of Ban Sai
* Weather data for Ban Sai Laos is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 31.2 | 36.1 | 39.2 | 40.3 | 42.0 | 35.0 | 34.5 | 33.6 | 32.1 | 31.9 | 32.5 | 32.5 |
| Average daytime temperature (°C) | 26.8 | 31.1 | 33.7 | 36.9 | 34.8 | 30.9 | 31.2 | 29.9 | 29.7 | 30.3 | 30.0 | 28.8 |
| Average temperature (°C) | 21.1 | 25.2 | 27.5 | 31.1 | 29.7 | 27.1 | 27.4 | 26.7 | 26.2 | 26.3 | 25.2 | 23.6 |
| Average night temperature (°C) | 15.2 | 19.2 | 21.7 | 25.7 | 25.4 | 24.1 | 24.3 | 24.0 | 23.5 | 22.7 | 20.6 | 18.5 |
| Absolute minimum temperature (°C) | 11.2 | 14.0 | 17.3 | 22.9 | 22.8 | 23.2 | 23.0 | 23.1 | 22.7 | 20.6 | 16.5 | 11.0 |
| 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 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.6 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.1 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.7 | 10.2 | 10.3 | 10.8 | 10.1 | 7.8 | 8.7 | 6.0 | 7.0 | 9.7 | 10.1 | 9.9 |
| Precipitation (mm) | 0 | 2 | 11 | 45 | 279 | 528 | 443 | 360 | 567 | 255 | 12 | 0 |
| Sunny days | 28 | 24 | 22 | 16 | 5 | 0 | 0 | 0 | 0 | 9 | 22 | 27 |
| Rainy days | 3 | 4 | 9 | 14 | 26 | 30 | 31 | 31 | 30 | 22 | 8 | 4 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban Sai is at