Average annual temperature is 25.8 °C
Absolute maximum temperature: 34.8 °C
Absolute minimum temperature: 17.6 °C
Number of sunny days: 68 days
Number of rainy days: 297 days
Look at detailed online map of Mongongon
* Weather data for Mongongon 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) | 34.6 | 34.8 | 34.4 | 33.5 | 33.6 | 31.2 | 30.9 | 31.4 | 31.8 | 31.6 | 32.4 | 33.7 |
| Average daytime temperature (°C) | 33.0 | 33.1 | 32.3 | 32.0 | 31.2 | 28.9 | 28.2 | 28.1 | 28.5 | 29.3 | 30.3 | 32.2 |
| Average temperature (°C) | 26.3 | 27.0 | 26.7 | 27.1 | 26.5 | 25.1 | 24.8 | 24.8 | 24.9 | 25.1 | 25.8 | 26.1 |
| Average night temperature (°C) | 21.7 | 22.7 | 23.0 | 23.8 | 23.7 | 23.0 | 22.7 | 22.7 | 22.7 | 22.8 | 23.0 | 21.9 |
| Absolute minimum temperature (°C) | 19.1 | 21.8 | 21.2 | 23.1 | 22.8 | 22.0 | 21.8 | 21.8 | 21.7 | 22.1 | 22.1 | 17.6 |
| 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 | 12.5 | 12.4 | 12.2 | 12.0 | 11.8 | 11.7 |
| 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 | 9.5 | 9.2 | 7.5 | 6.9 | 6.7 | 5.4 | 6.8 | 7.1 | 8.6 | 10.0 |
| Precipitation (mm) | 14 | 12 | 59 | 133 | 371 | 369 | 778 | 627 | 523 | 390 | 179 | 34 |
| Sunny days | 18 | 11 | 13 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 22 |
| Rainy days | 13 | 17 | 18 | 28 | 31 | 30 | 31 | 31 | 30 | 31 | 28 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Mongongon is at