Average annual temperature is 24.3 °C
Absolute maximum temperature: 39.2 °C
Absolute minimum temperature: 7.0 °C
Number of sunny days: 199 days
Number of rainy days: 166 days
Look at detailed online map of Siraha
* Weather data for Siraha Nepal is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 25.7 | 29.0 | 32.3 | 36.8 | 37.7 | 39.2 | 34.5 | 35.1 | 34.8 | 31.9 | 30.7 | 27.9 |
| Average daytime temperature (°C) | 20.4 | 25.6 | 29.1 | 32.9 | 33.6 | 34.9 | 32.2 | 31.6 | 32.2 | 30.2 | 28.5 | 24.6 |
| Average temperature (°C) | 14.4 | 19.2 | 22.7 | 26.0 | 28.0 | 30.1 | 29.0 | 28.2 | 28.5 | 25.4 | 22.4 | 18.1 |
| Average night temperature (°C) | 9.5 | 13.1 | 16.7 | 19.4 | 22.4 | 25.6 | 25.9 | 25.4 | 25.3 | 20.9 | 16.8 | 12.3 |
| Absolute minimum temperature (°C) | 7.0 | 9.2 | 14.5 | 15.2 | 19.5 | 24.1 | 24.6 | 23.3 | 23.4 | 17.6 | 14.8 | 9.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.7 | 11.3 | 12.0 | 12.8 | 13.5 | 13.8 | 13.6 | 13.1 | 12.3 | 11.5 | 10.8 | 10.5 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.5 | 9.7 | 10.0 | 10.6 | 10.8 | 11.3 | 9.5 | 8.0 | 9.7 | 9.6 | 9.6 | 8.7 |
| Precipitation (mm) | 0 | 0 | 50 | 22 | 115 | 182 | 302 | 360 | 180 | 50 | 0 | 3 |
| Sunny days | 31 | 27 | 21 | 22 | 13 | 9 | 2 | 1 | 2 | 12 | 30 | 29 |
| Rainy days | 0 | 1 | 10 | 8 | 18 | 21 | 29 | 30 | 28 | 19 | 0 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siraha is at