Average annual temperature is 25.4 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: 14.8 °C
Number of sunny days: 92 days
Number of rainy days: 273 days
Look at detailed online map of Helegonba
* Weather data for Helegonba 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) | 35.4 | 36.1 | 37.9 | 35.3 | 33.8 | 32.5 | 31.7 | 31.9 | 32.0 | 31.4 | 32.2 | 34.2 |
| Average daytime temperature (°C) | 33.4 | 34.5 | 33.0 | 32.6 | 31.4 | 29.4 | 29.3 | 28.7 | 29.2 | 29.6 | 30.2 | 32.0 |
| Average temperature (°C) | 25.3 | 27.4 | 26.6 | 26.7 | 26.0 | 24.7 | 24.4 | 24.3 | 24.5 | 24.8 | 25.2 | 24.8 |
| Average night temperature (°C) | 18.3 | 21.9 | 22.1 | 23.1 | 23.0 | 22.3 | 22.0 | 22.1 | 22.1 | 22.0 | 21.9 | 18.9 |
| Absolute minimum temperature (°C) | 15.4 | 20.1 | 19.4 | 22.0 | 22.0 | 21.4 | 20.7 | 21.5 | 21.1 | 21.2 | 20.5 | 14.8 |
| 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 | 12.6 | 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 | 10.0 | 8.8 | 8.9 | 7.8 | 7.1 | 7.5 | 5.9 | 7.4 | 8.4 | 8.9 | 10.3 |
| Precipitation (mm) | 31 | 1 | 76 | 216 | 336 | 291 | 368 | 494 | 353 | 380 | 195 | 2 |
| Sunny days | 26 | 24 | 11 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 24 |
| Rainy days | 5 | 4 | 20 | 27 | 31 | 30 | 31 | 31 | 30 | 31 | 26 | 7 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Helegonba is at