Average annual temperature is 29.7 °C
Absolute maximum temperature: 42.5 °C
Absolute minimum temperature: 14.7 °C
Number of sunny days: 284 days
Number of rainy days: 81 days
Look at detailed online map of Hérou
* Weather data for Hérou 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) | 36.8 | 38.9 | 40.5 | 42.3 | 42.5 | 41.3 | 38.4 | 35.4 | 39.7 | 39.8 | 38.6 | 38.0 |
| Average daytime temperature (°C) | 31.9 | 35.3 | 39.0 | 40.0 | 40.3 | 37.4 | 34.4 | 32.0 | 34.4 | 37.5 | 37.2 | 32.3 |
| Average temperature (°C) | 24.3 | 27.6 | 31.9 | 33.5 | 34.6 | 31.9 | 29.3 | 27.6 | 29.3 | 31.3 | 30.3 | 24.8 |
| Average night temperature (°C) | 17.8 | 21.0 | 25.3 | 27.0 | 29.0 | 27.1 | 25.1 | 24.0 | 24.9 | 25.1 | 23.6 | 18.3 |
| Absolute minimum temperature (°C) | 14.9 | 18.4 | 22.2 | 23.4 | 24.8 | 23.2 | 22.9 | 22.6 | 22.8 | 22.7 | 21.1 | 14.7 |
| 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 | 12.4 | 12.8 | 12.9 | 12.8 | 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) | 10.1 | 10.3 | 10.0 | 10.4 | 10.3 | 10.3 | 10.2 | 9.3 | 10.4 | 10.6 | 10.5 | 10.1 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 2 | 75 | 74 | 137 | 65 | 3 | 0 | 0 |
| Sunny days | 31 | 28 | 31 | 29 | 28 | 15 | 14 | 7 | 14 | 26 | 30 | 31 |
| Rainy days | 0 | 0 | 0 | 1 | 3 | 15 | 17 | 24 | 16 | 5 | 0 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Hérou is at