Average annual temperature is 29.6 °C
Absolute maximum temperature: 42.6 °C
Absolute minimum temperature: 14.5 °C
Number of sunny days: 285 days
Number of rainy days: 80 days
Look at detailed online map of Koyem
* Weather data for Koyem 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) | 37.1 | 39.1 | 41.4 | 42.6 | 42.1 | 40.4 | 38.2 | 35.0 | 38.9 | 40.2 | 38.6 | 37.2 |
| Average daytime temperature (°C) | 31.9 | 34.8 | 38.7 | 40.1 | 40.2 | 36.8 | 35.2 | 32.1 | 34.7 | 38.2 | 36.9 | 32.1 |
| Average temperature (°C) | 24.0 | 26.9 | 31.3 | 33.4 | 34.6 | 31.7 | 30.3 | 27.8 | 29.5 | 31.2 | 29.8 | 24.3 |
| Average night temperature (°C) | 17.3 | 20.1 | 24.4 | 26.9 | 28.9 | 26.9 | 25.9 | 24.5 | 25.1 | 24.5 | 23.0 | 17.6 |
| Absolute minimum temperature (°C) | 14.8 | 17.0 | 21.3 | 23.2 | 25.2 | 23.3 | 24.1 | 22.9 | 23.4 | 20.0 | 19.9 | 14.5 |
| 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 | 12.9 | 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) | 10.1 | 10.2 | 9.9 | 10.4 | 10.4 | 10.1 | 9.7 | 8.5 | 9.9 | 10.6 | 10.5 | 10.4 |
| Precipitation (mm) | 0 | 0 | 2 | 0 | 2 | 19 | 76 | 122 | 52 | 0 | 0 | 0 |
| Sunny days | 31 | 28 | 30 | 30 | 28 | 18 | 9 | 10 | 12 | 29 | 29 | 31 |
| Rainy days | 0 | 0 | 1 | 0 | 3 | 12 | 22 | 21 | 18 | 2 | 1 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Koyem is at