Average annual temperature is 24.0 °C
Absolute maximum temperature: 36.6 °C
Absolute minimum temperature: 13.1 °C
Number of sunny days: 118 days
Number of rainy days: 247 days
Look at detailed online map of Ban I Sai
* Weather data for Ban I 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) | 29.8 | 31.8 | 34.3 | 36.6 | 35.4 | 33.7 | 31.9 | 33.2 | 30.8 | 30.5 | 28.5 | 29.9 |
| Average daytime temperature (°C) | 25.1 | 27.5 | 30.5 | 34.2 | 31.9 | 30.0 | 29.4 | 30.0 | 28.2 | 26.9 | 26.0 | 26.6 |
| Average temperature (°C) | 20.3 | 22.4 | 24.6 | 27.2 | 26.2 | 25.2 | 24.7 | 24.8 | 23.9 | 23.3 | 22.7 | 22.6 |
| Average night temperature (°C) | 15.6 | 17.4 | 19.4 | 21.9 | 22.2 | 22.1 | 21.8 | 21.7 | 21.4 | 20.5 | 19.8 | 18.6 |
| Absolute minimum temperature (°C) | 13.1 | 13.8 | 16.0 | 20.7 | 20.7 | 21.4 | 20.2 | 20.3 | 20.4 | 19.6 | 16.4 | 14.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.7 | 12.1 | 12.5 | 12.8 | 13.0 | 12.9 | 12.6 | 12.2 | 11.8 | 11.4 | 11.3 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.3 | 10.3 | 10.8 | 11.0 | 10.6 | 8.4 | 8.8 | 8.4 | 7.2 | 8.1 | 10.0 | 10.3 |
| Precipitation (mm) | 2 | 46 | 11 | 39 | 118 | 90 | 173 | 119 | 319 | 236 | 48 | 13 |
| Sunny days | 25 | 17 | 22 | 18 | 1 | 1 | 1 | 0 | 0 | 0 | 13 | 20 |
| Rainy days | 6 | 11 | 9 | 12 | 30 | 29 | 30 | 31 | 30 | 31 | 17 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban I Sai is at