Average annual temperature is 25.3 °C
Absolute maximum temperature: 39.4 °C
Absolute minimum temperature: 10.2 °C
Number of sunny days: 150 days
Number of rainy days: 215 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) | 30.3 | 33.4 | 36.2 | 38.8 | 39.4 | 37.8 | 37.8 | 33.4 | 32.9 | 31.9 | 30.6 | 30.0 |
| Average daytime temperature (°C) | 27.1 | 29.7 | 32.8 | 36.3 | 34.8 | 32.6 | 32.8 | 30.6 | 30.2 | 29.0 | 28.1 | 27.4 |
| Average temperature (°C) | 20.4 | 22.5 | 25.1 | 28.8 | 29.0 | 27.5 | 27.9 | 26.3 | 26.0 | 25.2 | 23.1 | 22.1 |
| Average night temperature (°C) | 13.2 | 15.3 | 18.4 | 21.8 | 23.9 | 23.9 | 23.7 | 23.3 | 23.0 | 21.9 | 18.6 | 17.0 |
| Absolute minimum temperature (°C) | 10.2 | 12.0 | 15.2 | 18.5 | 21.6 | 22.6 | 22.7 | 21.7 | 22.1 | 20.6 | 14.7 | 12.1 |
| 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) | 10.2 | 10.3 | 10.2 | 11.0 | 10.8 | 9.4 | 9.8 | 7.4 | 8.1 | 8.9 | 10.0 | 9.7 |
| Precipitation (mm) | 0 | 25 | 9 | 26 | 143 | 270 | 247 | 345 | 357 | 271 | 66 | 15 |
| Sunny days | 29 | 20 | 26 | 25 | 12 | 0 | 1 | 1 | 2 | 2 | 16 | 16 |
| Rainy days | 2 | 8 | 5 | 5 | 19 | 30 | 30 | 30 | 28 | 29 | 14 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban San Sai is at