Average annual temperature is 27.7 °C
Absolute maximum temperature: 40.9 °C
Absolute minimum temperature: 13.7 °C
Number of sunny days: 149 days
Number of rainy days: 216 days
Look at detailed online map of Si Nakhon
* Weather data for Si Nakhon 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) | 31.6 | 33.7 | 37.9 | 39.7 | 40.9 | 37.6 | 35.6 | 37.0 | 33.8 | 33.1 | 32.7 | 32.9 |
| Average daytime temperature (°C) | 28.9 | 31.5 | 34.3 | 38.1 | 35.8 | 33.6 | 33.1 | 33.0 | 30.9 | 30.8 | 30.9 | 30.5 |
| Average temperature (°C) | 22.9 | 25.7 | 28.2 | 32.1 | 30.9 | 29.1 | 28.8 | 28.7 | 27.2 | 26.9 | 26.4 | 25.5 |
| Average night temperature (°C) | 16.9 | 19.4 | 22.3 | 26.5 | 26.5 | 25.7 | 25.4 | 25.5 | 24.5 | 23.8 | 22.2 | 20.6 |
| Absolute minimum temperature (°C) | 13.7 | 14.9 | 17.0 | 24.2 | 24.2 | 24.2 | 23.9 | 24.2 | 23.7 | 22.7 | 18.8 | 16.1 |
| 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 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.6 | 12.0 | 12.5 | 12.9 | 13.1 | 13.0 | 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) | 10.1 | 10.5 | 10.6 | 11.0 | 10.9 | 9.2 | 9.5 | 8.0 | 7.3 | 8.7 | 10.0 | 10.2 |
| Precipitation (mm) | 2 | 3 | 17 | 9 | 162 | 247 | 285 | 174 | 594 | 230 | 49 | 18 |
| Sunny days | 28 | 23 | 25 | 23 | 8 | 0 | 0 | 0 | 0 | 1 | 15 | 26 |
| Rainy days | 3 | 5 | 6 | 7 | 23 | 30 | 31 | 31 | 30 | 30 | 15 | 5 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Si Nakhon is at