Average annual temperature is 25.9 °C
Absolute maximum temperature: 39.0 °C
Absolute minimum temperature: 14.7 °C
Number of sunny days: 139 days
Number of rainy days: 226 days
Look at detailed online map of Janja
* Weather data for Janja 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) | 37.3 | 38.1 | 39.0 | 37.6 | 33.5 | 31.8 | 31.9 | 32.0 | 32.5 | 32.5 | 34.9 | 35.8 |
| Average daytime temperature (°C) | 34.8 | 35.9 | 35.7 | 34.0 | 31.4 | 29.2 | 29.0 | 28.4 | 29.5 | 30.1 | 31.9 | 34.1 |
| Average temperature (°C) | 26.4 | 27.9 | 27.9 | 27.5 | 26.5 | 24.8 | 24.4 | 24.1 | 24.6 | 25.0 | 25.9 | 25.6 |
| Average night temperature (°C) | 18.9 | 21.1 | 21.9 | 22.7 | 23.3 | 22.6 | 22.0 | 21.9 | 22.1 | 22.2 | 21.9 | 18.7 |
| Absolute minimum temperature (°C) | 16.5 | 19.3 | 20.4 | 21.4 | 22.4 | 21.7 | 20.4 | 20.6 | 21.2 | 21.2 | 20.1 | 14.7 |
| 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) | 9.8 | 10.1 | 9.9 | 9.4 | 7.4 | 6.7 | 7.4 | 6.0 | 7.4 | 7.8 | 9.2 | 10.0 |
| Precipitation (mm) | 5 | 0 | 31 | 82 | 214 | 291 | 409 | 592 | 363 | 341 | 64 | 4 |
| Sunny days | 28 | 28 | 21 | 18 | 2 | 0 | 0 | 0 | 0 | 0 | 13 | 29 |
| Rainy days | 3 | 0 | 10 | 12 | 29 | 30 | 31 | 31 | 30 | 31 | 17 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Janja is at