Average annual temperature is 13.9 °C
Absolute maximum temperature: 29.7 °C
Absolute minimum temperature: -8.4 °C
Number of sunny days: 139 days
Number of rainy days: 214 days
Number of snow days: 12 days
Look at detailed online map of Sā̃yā
* Weather data for Sā̃yā 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) | 17.0 | 22.3 | 19.7 | 24.3 | 25.5 | 29.7 | 28.6 | 28.1 | 28.1 | 25.4 | 20.5 | 20.7 |
| Average daytime temperature (°C) | 12.0 | 15.4 | 16.8 | 19.5 | 21.2 | 25.5 | 26.1 | 26.0 | 25.1 | 20.6 | 18.2 | 16.1 |
| Average temperature (°C) | 4.4 | 6.7 | 10.1 | 12.5 | 15.4 | 20.4 | 21.7 | 21.5 | 19.9 | 14.5 | 11.0 | 8.0 |
| Average night temperature (°C) | -2.3 | -0.8 | 3.4 | 5.4 | 8.9 | 15.0 | 18.1 | 17.8 | 15.2 | 8.3 | 3.8 | 1.2 |
| Absolute minimum temperature (°C) | -8.1 | -8.4 | 0.0 | 1.8 | 3.9 | 9.9 | 16.3 | 12.2 | 9.9 | 4.3 | 1.6 | -0.4 |
| 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 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.5 | 11.1 | 12.0 | 12.9 | 13.6 | 14.0 | 13.8 | 13.2 | 12.3 | 11.4 | 10.7 | 10.3 |
| 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) | 8.3 | 9.8 | 8.9 | 9.3 | 10.2 | 11.6 | 10.3 | 10.0 | 10.1 | 10.0 | 9.3 | 9.0 |
| Precipitation (mm) | 58 | 23 | 76 | 107 | 106 | 76 | 109 | 132 | 76 | 24 | 7 | 6 |
| Sunny days | 22 | 17 | 5 | 3 | 6 | 3 | 3 | 4 | 6 | 17 | 25 | 28 |
| Rainy days | 3 | 6 | 26 | 27 | 25 | 27 | 28 | 27 | 24 | 14 | 5 | 2 |
| Snow days | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Sā̃yā is at