Average annual temperature is 25.6 °C
Absolute maximum temperature: 34.1 °C
Absolute minimum temperature: 18.7 °C
Number of sunny days: 56 days
Number of rainy days: 309 days
Look at detailed online map of Koilewa
* Weather data for Koilewa Sierra Leone is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 33.5 | 34.0 | 34.1 | 33.4 | 33.3 | 30.8 | 30.6 | 31.5 | 31.7 | 31.7 | 32.2 | 33.7 |
| Average daytime temperature (°C) | 32.1 | 32.2 | 31.9 | 31.2 | 30.6 | 28.5 | 28.0 | 28.0 | 28.3 | 29.2 | 30.0 | 32.0 |
| Average temperature (°C) | 26.0 | 26.5 | 26.5 | 26.6 | 26.1 | 25.0 | 24.6 | 24.6 | 24.7 | 25.0 | 25.6 | 26.1 |
| Average night temperature (°C) | 21.9 | 23.0 | 23.2 | 23.6 | 23.4 | 22.9 | 22.6 | 22.7 | 22.6 | 22.7 | 22.9 | 22.0 |
| Absolute minimum temperature (°C) | 20.1 | 21.1 | 21.7 | 21.9 | 22.8 | 21.9 | 21.6 | 21.7 | 21.8 | 21.7 | 22.2 | 18.7 |
| 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) | 9.8 | 9.9 | 9.0 | 8.9 | 7.7 | 6.7 | 6.9 | 6.1 | 6.9 | 7.6 | 8.9 | 10.1 |
| Precipitation (mm) | 11 | 18 | 79 | 185 | 404 | 355 | 557 | 565 | 445 | 391 | 231 | 25 |
| Sunny days | 18 | 11 | 6 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 18 |
| Rainy days | 13 | 17 | 25 | 28 | 31 | 30 | 31 | 31 | 30 | 31 | 29 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Koilewa is at