Average annual temperature is 25.6 °C
Absolute maximum temperature: 34.1 °C
Absolute minimum temperature: 18.3 °C
Number of sunny days: 47 days
Number of rainy days: 318 days
Look at detailed online map of Bongboma
* Weather data for Bongboma 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) | 33.6 | 33.9 | 33.8 | 33.5 | 33.2 | 30.8 | 30.7 | 30.8 | 31.3 | 32.0 | 32.1 | 34.1 |
| Average daytime temperature (°C) | 32.1 | 32.0 | 31.7 | 31.2 | 30.7 | 28.7 | 28.1 | 27.8 | 28.2 | 29.4 | 30.1 | 32.1 |
| Average temperature (°C) | 26.0 | 26.5 | 26.5 | 26.5 | 26.1 | 24.9 | 24.6 | 24.6 | 24.7 | 25.0 | 25.6 | 26.0 |
| Average night temperature (°C) | 22.0 | 23.0 | 23.1 | 23.6 | 23.3 | 22.9 | 22.4 | 22.6 | 22.6 | 22.5 | 22.7 | 21.7 |
| Absolute minimum temperature (°C) | 19.8 | 21.3 | 22.0 | 21.6 | 22.6 | 21.9 | 21.7 | 21.3 | 21.4 | 21.7 | 21.9 | 18.3 |
| 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 | 9.8 | 8.9 | 8.9 | 7.7 | 6.2 | 6.8 | 5.9 | 6.6 | 7.5 | 8.9 | 10.1 |
| Precipitation (mm) | 19 | 22 | 96 | 147 | 397 | 347 | 561 | 576 | 498 | 446 | 232 | 30 |
| Sunny days | 14 | 10 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 18 |
| Rainy days | 17 | 18 | 27 | 30 | 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 Bongboma is at