Average annual temperature is 27.6 °C
Absolute maximum temperature: 38.9 °C
Absolute minimum temperature: 18.6 °C
Number of sunny days: 153 days
Number of rainy days: 212 days
Look at detailed online map of Illium
* Weather data for Illium Nigeria is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 37.4 | 38.1 | 38.9 | 38.3 | 35.7 | 33.9 | 33.1 | 31.9 | 32.8 | 33.3 | 33.7 | 34.2 |
| Average daytime temperature (°C) | 35.4 | 36.8 | 35.4 | 35.3 | 34.1 | 30.3 | 30.8 | 30.0 | 30.4 | 31.8 | 31.9 | 33.1 |
| Average temperature (°C) | 28.4 | 29.9 | 29.6 | 29.8 | 28.8 | 26.0 | 26.4 | 26.0 | 26.0 | 27.0 | 27.1 | 26.3 |
| Average night temperature (°C) | 22.5 | 24.0 | 25.2 | 25.5 | 25.1 | 23.5 | 23.3 | 23.3 | 23.0 | 23.7 | 23.4 | 21.0 |
| Absolute minimum temperature (°C) | 19.0 | 20.2 | 22.7 | 23.7 | 23.6 | 22.2 | 22.3 | 22.3 | 21.8 | 23.0 | 21.4 | 18.6 |
| 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) | 11.7 | 11.9 | 12.1 | 12.3 | 12.5 | 12.5 | 12.5 | 12.4 | 12.2 | 12.0 | 11.8 | 11.7 |
| 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 | 10.5 | 8.1 | 9.0 | 8.6 | 5.6 | 7.6 | 6.7 | 7.1 | 8.6 | 8.2 | 10.5 |
| Precipitation (mm) | 1 | 0 | 20 | 40 | 94 | 264 | 139 | 203 | 205 | 127 | 98 | 0 |
| Sunny days | 30 | 27 | 18 | 14 | 8 | 1 | 0 | 1 | 3 | 3 | 17 | 31 |
| Rainy days | 1 | 1 | 13 | 16 | 23 | 29 | 31 | 30 | 27 | 28 | 13 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Illium is at