Average annual temperature is 24.6 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: 13.6 °C
Number of sunny days: 102 days
Number of rainy days: 263 days
Look at detailed online map of Bosaia
* Weather data for Bosaia 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) | 35.6 | 36.2 | 37.5 | 34.4 | 33.3 | 30.7 | 30.4 | 30.4 | 30.4 | 31.1 | 31.5 | 34.4 |
| Average daytime temperature (°C) | 33.0 | 34.0 | 32.8 | 31.9 | 30.1 | 28.4 | 28.2 | 27.5 | 28.2 | 28.9 | 29.2 | 31.2 |
| Average temperature (°C) | 24.6 | 26.9 | 26.1 | 26.0 | 25.1 | 23.9 | 23.6 | 23.4 | 23.6 | 24.0 | 24.2 | 23.6 |
| Average night temperature (°C) | 17.5 | 20.9 | 21.3 | 22.3 | 22.0 | 21.6 | 21.2 | 21.2 | 21.3 | 21.3 | 20.8 | 17.4 |
| Absolute minimum temperature (°C) | 14.6 | 18.3 | 19.1 | 21.4 | 21.0 | 20.3 | 19.6 | 20.2 | 20.7 | 20.4 | 18.9 | 13.6 |
| 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 | 11.8 | 12.1 | 12.3 | 12.5 | 12.6 | 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) | 10.0 | 10.0 | 9.1 | 8.3 | 7.6 | 6.5 | 7.7 | 6.3 | 7.5 | 8.4 | 8.8 | 10.3 |
| Precipitation (mm) | 18 | 3 | 50 | 170 | 331 | 327 | 421 | 440 | 445 | 322 | 128 | 4 |
| Sunny days | 27 | 24 | 12 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 27 |
| Rainy days | 4 | 4 | 19 | 24 | 31 | 30 | 31 | 31 | 30 | 31 | 24 | 4 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bosaia is at