Average annual temperature is 28.1 °C
Absolute maximum temperature: 41.2 °C
Absolute minimum temperature: 17.2 °C
Number of sunny days: 227 days
Number of rainy days: 138 days
Look at detailed online map of Koulou
* Weather data for Koulou Chad is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 38.7 | 40.1 | 41.2 | 41.1 | 40.6 | 37.6 | 34.1 | 32.7 | 32.9 | 36.4 | 38.2 | 37.1 |
| Average daytime temperature (°C) | 35.0 | 36.9 | 38.1 | 39.1 | 38.0 | 31.9 | 30.4 | 29.1 | 30.0 | 33.1 | 35.2 | 35.0 |
| Average temperature (°C) | 27.3 | 28.9 | 31.1 | 32.8 | 31.9 | 26.4 | 25.8 | 24.5 | 25.2 | 27.4 | 28.6 | 27.5 |
| Average night temperature (°C) | 20.2 | 21.6 | 24.6 | 26.3 | 26.8 | 22.7 | 22.3 | 21.3 | 21.7 | 22.0 | 22.2 | 20.3 |
| Absolute minimum temperature (°C) | 17.2 | 17.9 | 21.8 | 24.6 | 23.8 | 20.8 | 21.1 | 19.7 | 20.1 | 19.9 | 19.7 | 18.3 |
| 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) | 11.6 | 11.8 | 12.1 | 12.4 | 12.6 | 12.8 | 12.7 | 12.5 | 12.2 | 11.9 | 11.6 | 11.5 |
| 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) | 10.4 | 10.7 | 9.6 | 10.6 | 10.3 | 9.1 | 8.2 | 8.1 | 8.7 | 10.4 | 10.5 | 10.7 |
| Precipitation (mm) | 0 | 0 | 3 | 5 | 8 | 113 | 96 | 200 | 104 | 30 | 5 | 0 |
| Sunny days | 31 | 28 | 28 | 26 | 21 | 5 | 5 | 1 | 7 | 21 | 23 | 31 |
| Rainy days | 0 | 0 | 3 | 4 | 10 | 25 | 26 | 30 | 23 | 10 | 7 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Koulou is at