Average annual temperature is 28.1 °C
Absolute maximum temperature: 41.7 °C
Absolute minimum temperature: 15.3 °C
Number of sunny days: 257 days
Number of rainy days: 108 days
Look at detailed online map of Illiassa
* Weather data for Illiassa Gambia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 36.2 | 39.2 | 40.8 | 41.7 | 41.7 | 40.3 | 36.6 | 34.7 | 34.0 | 37.2 | 36.9 | 37.0 |
| Average daytime temperature (°C) | 32.1 | 35.5 | 37.9 | 38.9 | 38.6 | 36.9 | 33.2 | 31.8 | 32.0 | 33.9 | 34.8 | 34.2 |
| Average temperature (°C) | 24.7 | 27.6 | 29.0 | 30.7 | 31.1 | 30.3 | 28.1 | 27.2 | 27.4 | 28.6 | 27.0 | 26.1 |
| Average night temperature (°C) | 19.3 | 21.3 | 21.7 | 23.9 | 25.2 | 25.9 | 24.7 | 24.2 | 24.2 | 24.6 | 20.8 | 19.6 |
| Absolute minimum temperature (°C) | 15.3 | 18.8 | 19.2 | 21.6 | 21.4 | 24.4 | 23.2 | 22.8 | 22.8 | 23.0 | 16.3 | 16.5 |
| 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 | 12.4 | 12.8 | 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) | 9.9 | 10.7 | 10.8 | 11.2 | 10.4 | 10.3 | 8.8 | 7.8 | 8.9 | 9.8 | 10.2 | 9.9 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 1 | 41 | 171 | 305 | 270 | 52 | 0 | 0 |
| Sunny days | 31 | 28 | 31 | 29 | 29 | 19 | 5 | 4 | 6 | 14 | 30 | 31 |
| Rainy days | 0 | 0 | 0 | 1 | 2 | 11 | 26 | 27 | 24 | 17 | 0 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Illiassa is at