Average annual temperature is 25.3 °C
Absolute maximum temperature: 36.3 °C
Absolute minimum temperature: 14.8 °C
Number of sunny days: 82 days
Number of rainy days: 283 days
Look at detailed online map of Kosiala
* Weather data for Kosiala 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) | 36.0 | 35.9 | 36.3 | 33.9 | 34.0 | 31.2 | 31.3 | 31.5 | 31.1 | 31.3 | 32.6 | 34.6 |
| Average daytime temperature (°C) | 33.7 | 34.2 | 32.3 | 32.0 | 31.2 | 29.1 | 29.1 | 28.4 | 28.9 | 29.2 | 29.8 | 31.7 |
| Average temperature (°C) | 25.6 | 27.7 | 26.4 | 26.4 | 25.9 | 24.6 | 24.3 | 24.2 | 24.4 | 24.7 | 25.1 | 24.8 |
| Average night temperature (°C) | 19.0 | 22.4 | 22.3 | 23.0 | 23.0 | 22.3 | 22.1 | 22.0 | 22.2 | 22.2 | 22.0 | 19.4 |
| Absolute minimum temperature (°C) | 15.1 | 20.7 | 20.0 | 21.7 | 21.9 | 21.6 | 20.4 | 20.6 | 21.3 | 21.4 | 20.3 | 14.8 |
| 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) | 11.7 | 11.9 | 12.1 | 12.3 | 12.5 | 12.6 | 12.5 | 12.4 | 12.2 | 11.9 | 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) | 9.9 | 9.7 | 8.6 | 8.7 | 7.6 | 6.9 | 7.1 | 5.8 | 7.5 | 8.1 | 8.5 | 9.9 |
| Precipitation (mm) | 37 | 4 | 61 | 174 | 336 | 266 | 362 | 472 | 366 | 385 | 166 | 3 |
| Sunny days | 23 | 23 | 11 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 21 |
| Rainy days | 8 | 5 | 20 | 28 | 31 | 30 | 31 | 31 | 30 | 31 | 28 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Kosiala is at