Average annual temperature is 25.7 °C
Absolute maximum temperature: 37.3 °C
Absolute minimum temperature: 16.7 °C
Number of sunny days: 86 days
Number of rainy days: 279 days
Look at detailed online map of Gnanyahun Boyema
* Weather data for Gnanyahun Boyema 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) | 36.2 | 37.3 | 37.3 | 35.1 | 33.9 | 32.6 | 32.4 | 32.4 | 32.2 | 31.4 | 31.7 | 34.2 |
| Average daytime temperature (°C) | 33.9 | 35.5 | 34.1 | 33.2 | 31.8 | 29.8 | 29.6 | 28.9 | 29.3 | 29.5 | 30.1 | 31.9 |
| Average temperature (°C) | 26.0 | 28.0 | 27.1 | 26.9 | 26.3 | 24.9 | 24.5 | 24.4 | 24.6 | 24.9 | 25.4 | 25.3 |
| Average night temperature (°C) | 20.2 | 22.5 | 22.6 | 23.5 | 23.3 | 22.6 | 22.3 | 22.3 | 22.5 | 22.5 | 22.6 | 20.3 |
| Absolute minimum temperature (°C) | 16.7 | 20.8 | 20.3 | 22.1 | 22.6 | 21.5 | 20.5 | 21.1 | 21.7 | 21.6 | 21.0 | 16.7 |
| 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 | 11.9 | 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) | 9.6 | 9.7 | 8.6 | 8.6 | 7.5 | 7.4 | 6.6 | 5.6 | 7.2 | 7.3 | 8.4 | 10.0 |
| Precipitation (mm) | 15 | 2 | 78 | 162 | 296 | 239 | 364 | 468 | 366 | 337 | 169 | 2 |
| Sunny days | 25 | 23 | 12 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 23 |
| Rainy days | 6 | 5 | 19 | 29 | 31 | 30 | 31 | 31 | 30 | 31 | 28 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Gnanyahun Boyema is at