Average annual temperature is 24.0 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: 16.9 °C
Number of sunny days: 116 days
Number of rainy days: 249 days
Look at detailed online map of Nyandawao
* Weather data for Nyandawao 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) | 33.0 | 34.6 | 35.3 | 33.1 | 31.9 | 29.8 | 29.2 | 30.2 | 29.6 | 30.7 | 31.4 | 33.3 |
| Average daytime temperature (°C) | 31.9 | 32.9 | 31.8 | 30.8 | 29.6 | 27.4 | 27.3 | 26.9 | 27.5 | 28.1 | 28.9 | 30.9 |
| Average temperature (°C) | 24.8 | 26.2 | 25.3 | 25.0 | 24.5 | 23.1 | 22.7 | 22.6 | 22.8 | 23.2 | 23.8 | 24.4 |
| Average night temperature (°C) | 18.9 | 19.7 | 20.2 | 21.3 | 21.2 | 20.6 | 20.2 | 20.2 | 20.3 | 20.3 | 20.1 | 19.1 |
| Absolute minimum temperature (°C) | 17.3 | 17.8 | 17.9 | 19.9 | 19.9 | 19.7 | 18.4 | 18.9 | 19.4 | 19.6 | 18.3 | 16.9 |
| 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) | 10.0 | 10.0 | 9.3 | 9.2 | 8.5 | 7.6 | 8.1 | 7.0 | 8.0 | 8.8 | 9.5 | 10.6 |
| Precipitation (mm) | 23 | 2 | 54 | 155 | 209 | 234 | 289 | 348 | 278 | 292 | 89 | 1 |
| Sunny days | 28 | 27 | 13 | 6 | 2 | 0 | 0 | 0 | 0 | 1 | 10 | 29 |
| Rainy days | 3 | 1 | 18 | 24 | 29 | 30 | 31 | 31 | 30 | 30 | 20 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Nyandawao is at