Average annual temperature is 25.9 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: 18.4 °C
Number of sunny days: 57 days
Number of rainy days: 308 days
Look at detailed online map of Bum
* Weather data for Bum 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) | 35.0 | 36.5 | 36.3 | 35.0 | 34.1 | 31.6 | 32.6 | 32.5 | 32.6 | 32.2 | 32.7 | 34.1 |
| Average daytime temperature (°C) | 33.7 | 34.5 | 33.6 | 32.6 | 31.3 | 29.3 | 28.9 | 28.7 | 29.0 | 29.7 | 30.5 | 32.6 |
| Average temperature (°C) | 26.5 | 27.2 | 27.0 | 26.8 | 26.4 | 25.1 | 24.8 | 24.8 | 24.9 | 25.2 | 25.8 | 26.2 |
| Average night temperature (°C) | 21.9 | 22.9 | 23.2 | 23.8 | 23.6 | 22.9 | 22.6 | 22.8 | 22.7 | 22.8 | 22.9 | 21.8 |
| Absolute minimum temperature (°C) | 19.4 | 21.8 | 21.5 | 22.5 | 22.8 | 21.6 | 21.8 | 21.7 | 22.0 | 22.0 | 21.9 | 18.4 |
| 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 | 12.5 | 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) | 9.7 | 9.7 | 8.6 | 8.0 | 7.3 | 6.3 | 6.4 | 5.5 | 6.9 | 6.4 | 8.2 | 9.9 |
| Precipitation (mm) | 5 | 14 | 79 | 182 | 324 | 384 | 556 | 609 | 453 | 381 | 199 | 14 |
| Sunny days | 21 | 10 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 20 |
| Rainy days | 10 | 18 | 26 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 29 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Bum during the most sunny months:
The largest precipitation sum in Bum is at