Average annual temperature is 26.6 °C
Absolute maximum temperature: 39.7 °C
Absolute minimum temperature: 17.5 °C
Number of sunny days: 126 days
Number of rainy days: 239 days
Look at detailed online map of Basa
* Weather data for Basa 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) | 38.6 | 39.2 | 39.7 | 38.2 | 36.3 | 33.2 | 32.9 | 33.0 | 32.3 | 32.9 | 33.5 | 36.2 |
| Average daytime temperature (°C) | 36.6 | 37.2 | 36.6 | 35.6 | 33.0 | 30.3 | 30.0 | 29.2 | 29.9 | 30.8 | 31.8 | 34.1 |
| Average temperature (°C) | 27.5 | 28.6 | 28.3 | 28.4 | 27.5 | 25.5 | 25.2 | 24.9 | 25.2 | 25.8 | 26.6 | 26.5 |
| Average night temperature (°C) | 20.6 | 22.8 | 23.2 | 24.0 | 24.5 | 23.3 | 22.8 | 22.8 | 22.9 | 23.2 | 23.0 | 20.8 |
| Absolute minimum temperature (°C) | 18.2 | 21.6 | 21.1 | 22.6 | 23.4 | 22.3 | 21.3 | 21.8 | 22.2 | 22.4 | 21.9 | 17.5 |
| 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 | 12.5 | 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) | 9.8 | 9.9 | 9.7 | 9.2 | 7.7 | 6.3 | 7.5 | 6.0 | 6.5 | 7.5 | 8.6 | 9.8 |
| Precipitation (mm) | 1 | 0 | 29 | 91 | 262 | 358 | 430 | 578 | 425 | 415 | 116 | 4 |
| Sunny days | 29 | 27 | 18 | 14 | 2 | 0 | 0 | 0 | 0 | 0 | 8 | 28 |
| Rainy days | 2 | 1 | 13 | 16 | 29 | 30 | 31 | 31 | 30 | 31 | 22 | 3 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Basa is at