Average annual temperature is 27.0 °C
Absolute maximum temperature: 39.7 °C
Absolute minimum temperature: 17.0 °C
Number of sunny days: 130 days
Number of rainy days: 235 days
Look at detailed online map of Banku
* Weather data for Banku 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) | 38.9 | 39.1 | 39.7 | 38.7 | 37.1 | 34.3 | 33.0 | 33.5 | 33.0 | 32.9 | 36.1 | 38.1 |
| Average daytime temperature (°C) | 37.1 | 37.4 | 37.4 | 35.9 | 33.0 | 30.6 | 30.3 | 29.6 | 30.2 | 31.0 | 32.3 | 34.9 |
| Average temperature (°C) | 28.1 | 29.3 | 29.1 | 28.8 | 27.6 | 25.7 | 25.4 | 25.1 | 25.4 | 26.0 | 26.8 | 26.8 |
| Average night temperature (°C) | 20.6 | 23.2 | 23.7 | 24.2 | 24.5 | 23.5 | 22.9 | 22.9 | 23.1 | 23.4 | 23.3 | 20.8 |
| Absolute minimum temperature (°C) | 17.9 | 22.4 | 21.9 | 23.1 | 23.5 | 22.5 | 21.7 | 21.9 | 22.5 | 22.7 | 22.1 | 17.0 |
| 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) | 11.6 | 11.8 | 12.1 | 12.3 | 12.6 | 12.7 | 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) | 9.7 | 9.9 | 9.6 | 9.0 | 7.4 | 6.5 | 7.5 | 5.7 | 7.0 | 7.6 | 8.5 | 10.0 |
| Precipitation (mm) | 1 | 0 | 11 | 106 | 213 | 304 | 530 | 521 | 461 | 385 | 141 | 2 |
| Sunny days | 30 | 28 | 22 | 12 | 1 | 0 | 0 | 0 | 0 | 0 | 9 | 28 |
| Rainy days | 1 | 0 | 9 | 18 | 30 | 30 | 31 | 31 | 30 | 31 | 21 | 3 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Banku is at