Average annual temperature is 28.5 °C
Absolute maximum temperature: 42.5 °C
Absolute minimum temperature: 13.3 °C
Number of sunny days: 305 days
Number of rainy days: 60 days
Look at detailed online map of Sileyri
* Weather data for Sileyri 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) | 36.7 | 38.7 | 40.8 | 42.5 | 42.2 | 39.4 | 38.5 | 37.7 | 38.6 | 38.4 | 37.6 | 35.3 |
| Average daytime temperature (°C) | 30.2 | 32.3 | 37.1 | 39.6 | 40.6 | 35.3 | 35.6 | 32.9 | 34.8 | 35.8 | 35.2 | 30.4 |
| Average temperature (°C) | 22.6 | 24.7 | 29.9 | 32.4 | 34.2 | 30.0 | 30.4 | 28.1 | 29.1 | 29.3 | 28.4 | 22.9 |
| Average night temperature (°C) | 15.9 | 18.1 | 23.1 | 25.6 | 27.5 | 25.4 | 25.8 | 24.0 | 24.5 | 23.5 | 22.2 | 16.6 |
| Absolute minimum temperature (°C) | 13.3 | 15.3 | 19.5 | 21.2 | 23.6 | 22.2 | 23.4 | 22.3 | 22.5 | 19.1 | 16.8 | 13.3 |
| 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 | 12.7 | 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) | 10.6 | 10.9 | 10.0 | 10.6 | 10.9 | 10.1 | 10.1 | 9.6 | 9.9 | 9.4 | 9.7 | 10.3 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 38 | 44 | 116 | 35 | 27 | 4 | 0 |
| Sunny days | 31 | 28 | 29 | 30 | 30 | 23 | 17 | 11 | 19 | 29 | 27 | 31 |
| Rainy days | 0 | 0 | 2 | 0 | 1 | 7 | 14 | 20 | 11 | 2 | 3 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sileyri is at