Average annual temperature is 27.2 °C
Absolute maximum temperature: 36.9 °C
Absolute minimum temperature: 17.7 °C
Number of sunny days: 80 days
Number of rainy days: 285 days
Look at detailed online map of Ban Nam Sai
* Weather data for Ban Nam 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) | 35.0 | 36.0 | 36.9 | 34.5 | 36.6 | 33.9 | 33.4 | 33.5 | 32.4 | 32.3 | 32.4 | 35.2 |
| Average daytime temperature (°C) | 30.9 | 32.9 | 34.2 | 33.3 | 33.0 | 31.3 | 30.6 | 30.9 | 30.2 | 30.6 | 30.8 | 32.2 |
| Average temperature (°C) | 25.6 | 27.0 | 28.3 | 28.7 | 28.6 | 27.6 | 26.9 | 27.1 | 26.3 | 26.6 | 26.5 | 27.1 |
| Average night temperature (°C) | 21.2 | 22.5 | 24.1 | 25.7 | 25.4 | 24.9 | 24.5 | 24.5 | 24.0 | 24.1 | 23.4 | 22.8 |
| Absolute minimum temperature (°C) | 17.7 | 20.5 | 21.7 | 22.6 | 23.4 | 23.4 | 23.1 | 23.4 | 23.0 | 23.2 | 20.7 | 18.2 |
| 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 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.5 | 11.7 | 12.1 | 12.4 | 12.7 | 12.9 | 12.8 | 12.5 | 12.2 | 11.8 | 11.5 | 11.4 |
| 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) | 9.4 | 10.4 | 10.8 | 10.1 | 9.6 | 9.0 | 7.5 | 8.2 | 6.8 | 7.7 | 9.4 | 10.0 |
| Precipitation (mm) | 25 | 62 | 42 | 114 | 190 | 357 | 421 | 406 | 663 | 292 | 75 | 30 |
| Sunny days | 23 | 13 | 12 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 13 | 15 |
| Rainy days | 8 | 15 | 19 | 28 | 30 | 29 | 31 | 31 | 30 | 31 | 17 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban Nam Sai is at