Average annual temperature is 25.8 °C
Absolute maximum temperature: 30.7 °C
Absolute minimum temperature: 22.1 °C
Number of sunny days: 32 days
Number of rainy days: 333 days
Look at detailed online map of Ilou
* Weather data for Ilou Gabon is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 29.7 | 29.8 | 30.7 | 30.4 | 30.5 | 29.4 | 29.1 | 29.3 | 29.4 | 29.6 | 29.6 | 30.0 |
| Average daytime temperature (°C) | 28.2 | 29.0 | 29.3 | 29.0 | 29.0 | 28.1 | 27.8 | 28.1 | 28.3 | 27.8 | 27.9 | 28.6 |
| Average temperature (°C) | 25.3 | 26.2 | 26.4 | 26.1 | 26.5 | 25.7 | 25.0 | 25.3 | 25.8 | 25.5 | 25.5 | 25.9 |
| Average night temperature (°C) | 23.3 | 24.2 | 24.2 | 24.0 | 24.6 | 23.9 | 23.1 | 23.6 | 24.1 | 23.9 | 23.7 | 23.9 |
| Absolute minimum temperature (°C) | 22.1 | 23.1 | 22.8 | 23.0 | 23.3 | 22.3 | 22.1 | 22.1 | 23.0 | 22.8 | 23.0 | 22.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 8.8 | 8.6 | 7.9 | 7.2 | 8.3 | 9.2 | 8.5 | 8.4 | 7.5 | 6.3 | 6.2 | 7.9 |
| Precipitation (mm) | 272 | 164 | 266 | 362 | 195 | 52 | 4 | 31 | 97 | 425 | 733 | 354 |
| Sunny days | 0 | 0 | 0 | 1 | 1 | 7 | 18 | 3 | 2 | 0 | 0 | 0 |
| Rainy days | 31 | 28 | 31 | 29 | 30 | 23 | 13 | 28 | 28 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ilou is at