Average annual temperature is 26.7 °C
Absolute maximum temperature: 41.0 °C
Absolute minimum temperature: 10.4 °C
Number of sunny days: 161 days
Number of rainy days: 204 days
Look at detailed online map of Sum Sao
* Weather data for Sum Sao 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) | 31.8 | 35.7 | 38.8 | 39.2 | 41.0 | 34.7 | 34.0 | 33.1 | 32.1 | 32.1 | 33.8 | 33.0 |
| Average daytime temperature (°C) | 27.2 | 31.3 | 34.2 | 36.6 | 34.3 | 31.4 | 31.5 | 30.4 | 29.9 | 30.6 | 31.0 | 29.2 |
| Average temperature (°C) | 21.3 | 25.3 | 28.2 | 31.2 | 29.8 | 27.7 | 27.7 | 26.9 | 26.3 | 26.5 | 26.0 | 23.9 |
| Average night temperature (°C) | 15.0 | 19.1 | 22.1 | 25.9 | 25.6 | 24.5 | 24.4 | 24.1 | 23.6 | 22.8 | 21.1 | 18.7 |
| Absolute minimum temperature (°C) | 10.4 | 12.9 | 17.4 | 23.5 | 23.0 | 23.6 | 23.2 | 23.3 | 22.9 | 20.9 | 16.3 | 12.3 |
| 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 | 12.5 | 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) | 9.5 | 10.3 | 10.6 | 11.0 | 10.6 | 7.9 | 8.9 | 6.5 | 6.7 | 9.5 | 10.1 | 10.0 |
| Precipitation (mm) | 5 | 11 | 12 | 21 | 194 | 401 | 422 | 370 | 534 | 205 | 3 | 1 |
| Sunny days | 26 | 23 | 27 | 18 | 6 | 0 | 0 | 0 | 0 | 9 | 23 | 29 |
| Rainy days | 5 | 5 | 4 | 12 | 25 | 30 | 31 | 31 | 30 | 22 | 7 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sum Sao is at