Average annual temperature is 26.3 °C
Absolute maximum temperature: 40.4 °C
Absolute minimum temperature: 9.2 °C
Number of sunny days: 149 days
Number of rainy days: 216 days
Look at detailed online map of Ban Na Si
* Weather data for Ban Na Si 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) | 30.4 | 34.9 | 39.2 | 39.8 | 40.4 | 37.5 | 35.4 | 35.0 | 32.7 | 31.8 | 31.6 | 32.7 |
| Average daytime temperature (°C) | 26.4 | 31.0 | 34.2 | 37.2 | 34.8 | 32.8 | 32.5 | 31.6 | 30.1 | 29.8 | 29.3 | 28.5 |
| Average temperature (°C) | 20.3 | 24.6 | 27.6 | 30.8 | 29.4 | 28.1 | 27.9 | 27.3 | 26.3 | 25.6 | 24.2 | 23.0 |
| Average night temperature (°C) | 13.9 | 18.0 | 21.2 | 24.9 | 24.9 | 24.6 | 24.4 | 24.2 | 23.4 | 22.3 | 19.5 | 17.7 |
| Absolute minimum temperature (°C) | 9.2 | 12.0 | 16.8 | 22.3 | 22.3 | 23.7 | 22.7 | 22.9 | 22.6 | 20.3 | 14.9 | 11.0 |
| 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) | 9.6 | 10.6 | 10.4 | 11.0 | 10.7 | 8.2 | 9.2 | 6.8 | 7.4 | 8.9 | 9.9 | 10.0 |
| Precipitation (mm) | 6 | 5 | 4 | 25 | 138 | 246 | 138 | 165 | 404 | 267 | 10 | 5 |
| Sunny days | 28 | 25 | 25 | 16 | 3 | 1 | 0 | 0 | 1 | 6 | 17 | 27 |
| Rainy days | 3 | 3 | 6 | 14 | 28 | 29 | 31 | 31 | 29 | 25 | 13 | 4 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban Na Si is at