Average annual temperature is 25.1 °C
Absolute maximum temperature: 37.1 °C
Absolute minimum temperature: 15.3 °C
Number of sunny days: 91 days
Number of rainy days: 274 days
Look at detailed online map of Niawama
* Weather data for Niawama 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 | 35.8 | 37.1 | 34.9 | 33.7 | 32.0 | 31.2 | 31.3 | 31.3 | 30.8 | 31.8 | 33.9 |
| Average daytime temperature (°C) | 33.0 | 34.1 | 32.5 | 32.2 | 30.9 | 28.9 | 28.9 | 28.2 | 28.7 | 29.2 | 29.8 | 31.6 |
| Average temperature (°C) | 25.3 | 27.3 | 26.3 | 26.4 | 25.7 | 24.3 | 24.1 | 23.9 | 24.1 | 24.5 | 24.9 | 24.8 |
| Average night temperature (°C) | 18.6 | 21.7 | 21.9 | 22.9 | 22.7 | 22.1 | 21.7 | 21.8 | 21.9 | 21.9 | 21.7 | 19.0 |
| Absolute minimum temperature (°C) | 15.8 | 20.1 | 19.8 | 21.3 | 21.6 | 21.3 | 20.4 | 21.0 | 21.0 | 21.2 | 20.5 | 15.3 |
| 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 | 9.9 | 8.8 | 8.8 | 7.8 | 6.9 | 7.3 | 5.9 | 7.5 | 8.2 | 8.8 | 10.1 |
| Precipitation (mm) | 19 | 0 | 77 | 204 | 327 | 285 | 342 | 458 | 327 | 335 | 163 | 2 |
| Sunny days | 24 | 24 | 13 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 24 |
| Rainy days | 7 | 4 | 18 | 29 | 30 | 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 Niawama is at