Average annual temperature is 25.3 °C
Absolute maximum temperature: 37.3 °C
Absolute minimum temperature: 17.4 °C
Number of sunny days: 133 days
Number of rainy days: 232 days
Look at detailed online map of Koya
* Weather data for Koya 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) | 35.9 | 37.1 | 37.3 | 36.1 | 34.1 | 31.6 | 31.5 | 31.2 | 31.6 | 31.9 | 33.2 | 35.0 |
| Average daytime temperature (°C) | 33.7 | 35.2 | 34.4 | 33.2 | 31.0 | 28.8 | 28.6 | 28.1 | 29.0 | 29.7 | 31.1 | 32.7 |
| Average temperature (°C) | 26.4 | 27.7 | 26.9 | 26.8 | 25.7 | 24.0 | 23.7 | 23.5 | 24.0 | 24.6 | 25.5 | 25.7 |
| Average night temperature (°C) | 20.2 | 21.1 | 21.3 | 22.3 | 22.6 | 21.8 | 21.4 | 21.4 | 21.5 | 21.6 | 21.7 | 20.0 |
| Absolute minimum temperature (°C) | 18.9 | 19.6 | 19.6 | 21.1 | 21.6 | 21.1 | 20.4 | 20.5 | 20.6 | 20.9 | 20.3 | 17.4 |
| 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 | 12.3 | 12.6 | 12.7 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 |
| 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 | 10.1 | 9.9 | 9.1 | 7.2 | 6.3 | 7.0 | 5.9 | 7.0 | 8.0 | 9.2 | 10.2 |
| Precipitation (mm) | 9 | 0 | 42 | 86 | 270 | 291 | 415 | 583 | 438 | 371 | 96 | 4 |
| Sunny days | 28 | 27 | 22 | 15 | 1 | 0 | 0 | 0 | 0 | 0 | 11 | 29 |
| Rainy days | 3 | 1 | 9 | 15 | 30 | 30 | 31 | 31 | 30 | 31 | 19 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Koya is at