Average annual temperature is 26.4 °C
Absolute maximum temperature: 34.5 °C
Absolute minimum temperature: 20.8 °C
Number of sunny days: 75 days
Number of rainy days: 290 days
Look at detailed online map of Bonsa
* Weather data for Bonsa 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) | 34.4 | 33.3 | 33.0 | 32.8 | 32.8 | 30.6 | 29.8 | 30.0 | 30.6 | 30.9 | 32.0 | 34.5 |
| Average daytime temperature (°C) | 31.7 | 31.9 | 31.3 | 31.3 | 30.7 | 28.6 | 27.9 | 27.7 | 28.3 | 29.1 | 29.9 | 32.3 |
| Average temperature (°C) | 26.9 | 27.3 | 27.2 | 27.6 | 27.1 | 25.7 | 25.1 | 25.1 | 25.3 | 25.6 | 26.4 | 27.1 |
| Average night temperature (°C) | 23.7 | 24.2 | 24.5 | 25.0 | 24.6 | 23.7 | 23.2 | 23.1 | 23.2 | 23.5 | 24.0 | 23.5 |
| Absolute minimum temperature (°C) | 22.1 | 23.1 | 23.0 | 23.7 | 23.5 | 22.8 | 22.5 | 22.0 | 22.3 | 22.8 | 22.6 | 20.8 |
| 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 | 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) | 10.0 | 10.0 | 9.6 | 9.2 | 7.9 | 7.0 | 6.6 | 5.3 | 6.9 | 7.2 | 8.7 | 10.1 |
| Precipitation (mm) | 10 | 13 | 61 | 181 | 356 | 449 | 839 | 623 | 507 | 420 | 208 | 35 |
| Sunny days | 21 | 18 | 12 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 20 |
| Rainy days | 10 | 10 | 19 | 27 | 30 | 30 | 31 | 31 | 30 | 31 | 30 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bonsa is at