Average annual temperature is 7.5 °C
Absolute maximum temperature: 18.1 °C
Absolute minimum temperature: -9.0 °C
Number of sunny days: 116 days
Number of rainy days: 249 days
Look at detailed online map of Helmu
* Weather data for Helmu 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) | 10.1 | 11.5 | 11.6 | 17.7 | 17.1 | 18.1 | 17.0 | 17.5 | 16.7 | 14.7 | 11.5 | 10.4 |
| Average daytime temperature (°C) | 6.4 | 8.1 | 9.4 | 13.2 | 13.6 | 16.5 | 15.3 | 14.8 | 15.1 | 11.4 | 9.1 | 6.2 |
| Average temperature (°C) | 1.6 | 2.9 | 4.5 | 8.0 | 9.3 | 12.7 | 12.2 | 12.1 | 11.8 | 7.9 | 5.1 | 1.9 |
| Average night temperature (°C) | -3.3 | -2.0 | -0.1 | 3.1 | 5.2 | 9.1 | 9.9 | 10.0 | 8.9 | 4.5 | 1.0 | -2.7 |
| Absolute minimum temperature (°C) | -9.0 | -5.6 | -2.5 | -2.6 | 2.2 | 7.0 | 8.8 | 8.2 | 7.4 | 0.7 | -1.9 | -7.5 |
| 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) | 9.4 | 10.2 | 9.8 | 10.8 | 11.0 | 11.4 | 8.8 | 7.4 | 10.2 | 9.4 | 9.4 | 8.6 |
| Precipitation (mm) | 0 | 13 | 77 | 31 | 130 | 304 | 468 | 343 | 155 | 41 | 15 | 8 |
| Sunny days | 31 | 20 | 3 | 6 | 3 | 3 | 0 | 0 | 0 | 5 | 19 | 26 |
| Rainy days | 0 | 8 | 28 | 24 | 28 | 27 | 31 | 31 | 30 | 26 | 11 | 5 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Helmu is at