Average annual temperature is 24.9 °C
Absolute maximum temperature: 39.6 °C
Absolute minimum temperature: 10.6 °C
Number of sunny days: 149 days
Number of rainy days: 216 days
Look at detailed online map of San Sai
* Weather data for 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 | 33.7 | 36.0 | 38.9 | 39.6 | 37.5 | 35.9 | 33.3 | 33.2 | 32.3 | 30.9 | 29.9 |
| Average daytime temperature (°C) | 26.9 | 29.8 | 32.3 | 36.1 | 34.7 | 32.0 | 32.2 | 30.2 | 30.3 | 29.2 | 28.2 | 27.3 |
| Average temperature (°C) | 19.7 | 22.4 | 24.6 | 28.2 | 28.5 | 27.1 | 27.4 | 26.2 | 25.9 | 24.9 | 22.8 | 21.4 |
| Average night temperature (°C) | 13.2 | 16.0 | 18.2 | 21.6 | 23.6 | 23.6 | 23.6 | 23.2 | 22.7 | 21.6 | 18.3 | 16.6 |
| Absolute minimum temperature (°C) | 10.6 | 13.3 | 15.5 | 18.8 | 20.2 | 22.6 | 22.5 | 22.2 | 21.6 | 19.6 | 14.4 | 11.1 |
| 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 | 10.9 |
| 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) | 10.3 | 9.9 | 9.8 | 10.8 | 10.6 | 9.1 | 9.7 | 6.8 | 8.4 | 9.0 | 9.8 | 9.6 |
| Precipitation (mm) | 0 | 14 | 29 | 7 | 194 | 301 | 255 | 373 | 415 | 256 | 69 | 45 |
| Sunny days | 29 | 19 | 24 | 27 | 9 | 0 | 3 | 1 | 4 | 0 | 18 | 15 |
| Rainy days | 2 | 9 | 7 | 3 | 22 | 30 | 28 | 30 | 26 | 31 | 12 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Sai is at