Average annual temperature is 18.4 °C
Absolute maximum temperature: 29.1 °C
Absolute minimum temperature: 4.5 °C
Number of sunny days: 120 days
Number of rainy days: 245 days
Look at detailed online map of Siwā̃
* Weather data for Siwā̃ 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) | 21.1 | 21.0 | 22.9 | 27.2 | 28.2 | 28.9 | 28.8 | 29.1 | 28.8 | 25.9 | 22.9 | 20.3 |
| Average daytime temperature (°C) | 17.1 | 17.9 | 19.6 | 23.2 | 24.2 | 26.8 | 26.3 | 26.1 | 26.3 | 22.8 | 20.8 | 17.8 |
| Average temperature (°C) | 13.0 | 14.3 | 15.3 | 18.3 | 19.7 | 22.9 | 23.0 | 23.0 | 22.6 | 18.7 | 15.9 | 13.6 |
| Average night temperature (°C) | 9.5 | 11.3 | 11.2 | 13.9 | 15.6 | 19.7 | 21.0 | 20.8 | 19.0 | 15.1 | 11.2 | 9.9 |
| Absolute minimum temperature (°C) | 4.5 | 9.7 | 7.2 | 10.5 | 11.8 | 17.2 | 20.0 | 19.2 | 16.9 | 10.5 | 8.9 | 6.4 |
| 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) | 10.6 | 11.2 | 12.0 | 12.8 | 13.5 | 13.8 | 13.7 | 13.1 | 12.3 | 11.5 | 10.8 | 10.4 |
| 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) | 8.8 | 7.1 | 8.0 | 9.1 | 9.2 | 8.8 | 7.3 | 6.8 | 9.7 | 8.9 | 9.5 | 8.7 |
| Precipitation (mm) | 29 | 59 | 79 | 43 | 86 | 211 | 379 | 551 | 82 | 36 | 8 | 13 |
| Sunny days | 20 | 13 | 4 | 8 | 2 | 3 | 1 | 1 | 6 | 13 | 24 | 25 |
| Rainy days | 11 | 15 | 27 | 22 | 29 | 27 | 30 | 30 | 24 | 18 | 6 | 6 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siwā̃ is at