Average annual temperature is 21.3 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: 4.8 °C
Number of sunny days: 198 days
Number of rainy days: 167 days
Look at detailed online map of Isma
* Weather data for Isma 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) | 26.2 | 27.0 | 28.9 | 36.4 | 34.1 | 37.5 | 33.5 | 32.0 | 32.1 | 31.2 | 27.2 | 25.5 |
| Average daytime temperature (°C) | 21.5 | 24.4 | 25.8 | 30.3 | 30.7 | 33.7 | 29.9 | 29.9 | 30.0 | 26.8 | 24.4 | 21.2 |
| Average temperature (°C) | 13.7 | 16.7 | 18.7 | 22.5 | 24.1 | 27.9 | 26.2 | 26.1 | 25.6 | 21.4 | 17.7 | 14.4 |
| Average night temperature (°C) | 6.7 | 9.2 | 11.3 | 13.9 | 16.9 | 22.2 | 23.4 | 23.3 | 22.1 | 16.3 | 11.4 | 8.1 |
| Absolute minimum temperature (°C) | 4.8 | 6.7 | 9.4 | 10.2 | 12.6 | 17.5 | 22.3 | 21.0 | 19.6 | 11.8 | 9.2 | 6.1 |
| 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 | 13.9 | 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 | 9.9 | 9.8 | 10.1 | 10.7 | 10.9 | 8.6 | 7.7 | 9.6 | 9.2 | 9.3 | 8.4 |
| Precipitation (mm) | 1 | 1 | 20 | 18 | 32 | 188 | 251 | 260 | 81 | 42 | 2 | 11 |
| Sunny days | 30 | 23 | 20 | 23 | 14 | 9 | 0 | 0 | 7 | 16 | 27 | 29 |
| Rainy days | 1 | 5 | 11 | 7 | 17 | 21 | 31 | 31 | 23 | 15 | 3 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Isma is at