Average annual temperature is 26.1 °C
Absolute maximum temperature: 40.0 °C
Absolute minimum temperature: 11.0 °C
Number of sunny days: 144 days
Number of rainy days: 221 days
Look at detailed online map of Ban San Sai
* Weather data for Ban San Sai Thailand is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 29.6 | 32.4 | 36.5 | 39.7 | 40.0 | 37.5 | 36.0 | 35.8 | 33.5 | 31.5 | 31.1 | 30.4 |
| Average daytime temperature (°C) | 27.4 | 29.9 | 32.8 | 37.3 | 34.6 | 32.8 | 33.7 | 32.0 | 30.3 | 29.4 | 28.9 | 28.2 |
| Average temperature (°C) | 20.6 | 23.1 | 26.0 | 30.5 | 29.2 | 28.1 | 28.5 | 27.5 | 26.5 | 25.6 | 24.2 | 23.0 |
| Average night temperature (°C) | 14.3 | 16.8 | 19.7 | 23.9 | 24.5 | 24.4 | 24.3 | 23.9 | 23.5 | 22.4 | 20.2 | 18.7 |
| Absolute minimum temperature (°C) | 11.0 | 14.2 | 17.2 | 20.6 | 22.1 | 22.8 | 22.6 | 22.8 | 22.5 | 21.1 | 17.0 | 12.8 |
| 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) | 11.1 | 11.5 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.0 |
| 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) | 10.2 | 10.6 | 10.6 | 11.2 | 11.2 | 9.7 | 10.3 | 8.2 | 8.9 | 9.7 | 10.1 | 10.1 |
| Precipitation (mm) | 1 | 29 | 27 | 6 | 139 | 224 | 189 | 167 | 413 | 310 | 61 | 26 |
| Sunny days | 28 | 21 | 27 | 25 | 7 | 1 | 0 | 5 | 0 | 1 | 14 | 15 |
| Rainy days | 3 | 7 | 4 | 5 | 24 | 29 | 31 | 26 | 30 | 30 | 16 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban San Sai is at