Average annual temperature is 28.4 °C
Absolute maximum temperature: 42.6 °C
Absolute minimum temperature: 11.6 °C
Number of sunny days: 305 days
Number of rainy days: 60 days
Look at detailed online map of Héloun
* Weather data for Héloun Niger is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 35.9 | 37.8 | 40.2 | 41.8 | 42.6 | 40.7 | 38.7 | 34.3 | 39.0 | 38.6 | 37.2 | 35.1 |
| Average daytime temperature (°C) | 30.2 | 32.6 | 37.1 | 39.2 | 39.9 | 36.3 | 35.0 | 31.4 | 34.4 | 37.0 | 35.3 | 30.0 |
| Average temperature (°C) | 22.4 | 24.8 | 29.7 | 32.1 | 33.8 | 30.8 | 29.7 | 27.1 | 28.9 | 30.4 | 28.2 | 22.2 |
| Average night temperature (°C) | 14.8 | 17.5 | 22.3 | 25.2 | 27.3 | 25.8 | 25.0 | 23.5 | 24.2 | 23.6 | 21.2 | 14.9 |
| Absolute minimum temperature (°C) | 12.1 | 14.8 | 17.9 | 20.2 | 23.2 | 23.1 | 22.5 | 21.9 | 22.4 | 19.3 | 16.3 | 11.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.4 | 11.7 | 12.1 | 12.5 | 12.8 | 13.0 | 12.9 | 12.6 | 12.2 | 11.8 | 11.5 | 11.3 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.4 | 10.4 | 10.0 | 10.7 | 10.7 | 10.4 | 10.2 | 9.2 | 10.5 | 10.5 | 10.3 | 10.5 |
| Precipitation (mm) | 0 | 0 | 1 | 0 | 4 | 30 | 36 | 82 | 39 | 0 | 0 | 0 |
| Sunny days | 31 | 28 | 29 | 29 | 29 | 22 | 17 | 13 | 15 | 31 | 30 | 31 |
| Rainy days | 0 | 0 | 2 | 1 | 2 | 8 | 14 | 18 | 15 | 0 | 0 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Héloun is at