Average annual temperature is 26.8 °C
Absolute maximum temperature: 37.8 °C
Absolute minimum temperature: 19.4 °C
Number of sunny days: 71 days
Number of rainy days: 294 days
Look at detailed online map of Illaco
* Weather data for Illaco Benin is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 35.9 | 37.8 | 35.6 | 35.7 | 34.4 | 33.3 | 32.1 | 32.0 | 34.1 | 33.9 | 34.9 | 36.8 |
| Average daytime temperature (°C) | 34.4 | 35.4 | 33.8 | 33.1 | 32.6 | 30.4 | 29.9 | 29.8 | 30.1 | 31.6 | 33.0 | 35.0 |
| Average temperature (°C) | 27.2 | 28.2 | 27.9 | 27.8 | 27.5 | 25.6 | 25.4 | 25.4 | 25.4 | 26.3 | 27.1 | 27.6 |
| Average night temperature (°C) | 23.1 | 24.2 | 24.5 | 24.7 | 24.5 | 23.3 | 23.1 | 23.1 | 23.0 | 23.6 | 24.0 | 23.1 |
| Absolute minimum temperature (°C) | 19.4 | 20.8 | 22.8 | 23.6 | 23.3 | 21.8 | 21.8 | 22.3 | 21.7 | 22.1 | 21.9 | 20.6 |
| 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) | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 | 12.5 | 12.3 | 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) | 9.1 | 9.7 | 8.5 | 8.6 | 8.7 | 7.0 | 7.9 | 7.6 | 7.3 | 8.5 | 9.3 | 10.1 |
| Precipitation (mm) | 14 | 18 | 79 | 81 | 134 | 218 | 234 | 155 | 210 | 152 | 53 | 20 |
| Sunny days | 19 | 14 | 4 | 4 | 0 | 2 | 0 | 0 | 0 | 0 | 5 | 23 |
| Rainy days | 12 | 14 | 27 | 26 | 31 | 28 | 31 | 31 | 30 | 31 | 25 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Illaco is at