Average annual temperature is 25.0 °C
Absolute maximum temperature: 37.7 °C
Absolute minimum temperature: 15.1 °C
Number of sunny days: 105 days
Number of rainy days: 260 days
Look at detailed online map of Bourma
* Weather data for Bourma 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 | 36.0 | 37.7 | 34.1 | 33.8 | 31.1 | 30.8 | 30.9 | 30.7 | 31.8 | 32.7 | 34.8 |
| Average daytime temperature (°C) | 33.3 | 34.2 | 33.1 | 32.2 | 30.6 | 28.7 | 28.6 | 28.0 | 28.6 | 29.3 | 29.9 | 32.1 |
| Average temperature (°C) | 25.2 | 27.1 | 26.4 | 26.3 | 25.5 | 24.2 | 24.0 | 23.9 | 24.1 | 24.5 | 24.6 | 24.3 |
| Average night temperature (°C) | 18.1 | 21.0 | 21.5 | 22.7 | 22.3 | 21.9 | 21.6 | 21.7 | 21.7 | 21.6 | 21.2 | 17.9 |
| Absolute minimum temperature (°C) | 15.3 | 18.2 | 18.9 | 21.4 | 21.5 | 20.8 | 20.2 | 20.4 | 21.0 | 20.7 | 19.5 | 15.1 |
| 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 | 12.6 | 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) | 9.9 | 10.1 | 9.0 | 8.6 | 7.5 | 6.5 | 7.2 | 6.0 | 7.6 | 8.4 | 8.7 | 10.3 |
| Precipitation (mm) | 20 | 2 | 57 | 190 | 287 | 285 | 360 | 458 | 341 | 305 | 133 | 3 |
| Sunny days | 27 | 26 | 13 | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 28 |
| Rainy days | 4 | 2 | 18 | 23 | 30 | 30 | 31 | 31 | 30 | 31 | 27 | 3 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bourma is at