Average annual temperature is 24.7 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: 16.6 °C
Number of sunny days: 119 days
Number of rainy days: 246 days
Look at detailed online map of Herako
* Weather data for Herako 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) | 34.2 | 35.7 | 36.2 | 33.9 | 32.4 | 30.9 | 30.2 | 31.9 | 30.2 | 30.1 | 31.7 | 34.3 |
| Average daytime temperature (°C) | 32.7 | 34.0 | 33.2 | 32.0 | 30.0 | 28.5 | 28.3 | 27.4 | 28.1 | 28.5 | 29.3 | 31.4 |
| Average temperature (°C) | 25.6 | 27.0 | 26.1 | 25.8 | 25.0 | 23.7 | 23.4 | 23.2 | 23.4 | 23.7 | 24.3 | 24.8 |
| Average night temperature (°C) | 19.3 | 20.5 | 20.8 | 21.9 | 22.0 | 21.4 | 21.0 | 21.1 | 21.1 | 21.0 | 21.0 | 19.3 |
| Absolute minimum temperature (°C) | 17.8 | 18.8 | 18.8 | 20.8 | 21.0 | 20.5 | 19.6 | 19.8 | 20.2 | 20.0 | 19.0 | 16.6 |
| 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 | 11.8 | 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 | 9.4 | 8.9 | 7.2 | 6.3 | 7.1 | 6.0 | 6.9 | 8.1 | 8.8 | 10.2 |
| Precipitation (mm) | 22 | 1 | 49 | 143 | 271 | 303 | 348 | 448 | 371 | 395 | 122 | 7 |
| Sunny days | 28 | 25 | 17 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 29 |
| Rainy days | 3 | 3 | 14 | 20 | 31 | 30 | 31 | 31 | 30 | 31 | 20 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Herako is at