Average annual temperature is 28.1 °C
Absolute maximum temperature: 42.0 °C
Absolute minimum temperature: 11.5 °C
Number of sunny days: 309 days
Number of rainy days: 56 days
Look at detailed online map of Illio
* Weather data for Illio 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) | 35.6 | 37.3 | 40.3 | 41.3 | 42.0 | 40.9 | 38.4 | 34.6 | 37.8 | 38.5 | 36.6 | 34.5 |
| Average daytime temperature (°C) | 29.6 | 31.8 | 36.6 | 38.9 | 39.8 | 36.2 | 34.9 | 31.6 | 34.1 | 36.7 | 34.8 | 29.3 |
| Average temperature (°C) | 21.8 | 24.2 | 29.3 | 32.0 | 33.7 | 30.8 | 29.7 | 27.2 | 28.5 | 30.1 | 27.8 | 21.6 |
| Average night temperature (°C) | 14.7 | 17.2 | 22.3 | 25.0 | 27.0 | 25.7 | 25.1 | 23.5 | 23.9 | 23.8 | 21.3 | 14.8 |
| Absolute minimum temperature (°C) | 11.6 | 14.4 | 18.3 | 20.7 | 21.5 | 23.1 | 23.4 | 21.6 | 22.1 | 18.8 | 16.8 | 11.5 |
| 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 | 12.5 | 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) | 10.5 | 10.6 | 10.0 | 10.8 | 10.7 | 10.4 | 10.2 | 9.4 | 10.5 | 10.4 | 10.1 | 10.4 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 35 | 19 | 72 | 27 | 0 | 0 | 0 |
| Sunny days | 31 | 28 | 30 | 30 | 30 | 22 | 18 | 12 | 17 | 30 | 30 | 31 |
| Rainy days | 0 | 0 | 1 | 0 | 1 | 8 | 13 | 19 | 13 | 1 | 0 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Illio is at