Average annual temperature is 26.3 °C
Absolute maximum temperature: 38.9 °C
Absolute minimum temperature: 17.9 °C
Number of sunny days: 120 days
Number of rainy days: 245 days
Look at detailed online map of Waterloo
* Weather data for Waterloo 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) | 38.3 | 38.9 | 38.8 | 37.8 | 37.0 | 32.9 | 33.2 | 33.8 | 32.6 | 33.2 | 33.6 | 35.9 |
| Average daytime temperature (°C) | 36.0 | 36.7 | 35.6 | 35.1 | 32.9 | 30.2 | 30.0 | 29.1 | 30.0 | 30.6 | 31.9 | 33.7 |
| Average temperature (°C) | 26.8 | 27.9 | 27.6 | 27.9 | 27.2 | 25.3 | 25.0 | 24.7 | 25.1 | 25.5 | 26.4 | 26.1 |
| Average night temperature (°C) | 20.4 | 22.1 | 22.7 | 23.6 | 24.2 | 23.1 | 22.5 | 22.6 | 22.7 | 22.9 | 22.8 | 20.8 |
| Absolute minimum temperature (°C) | 17.9 | 20.8 | 20.9 | 22.2 | 23.0 | 22.3 | 21.0 | 21.8 | 22.0 | 22.0 | 21.7 | 17.9 |
| 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 | 12.7 | 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) | 10.0 | 10.0 | 9.8 | 9.2 | 7.7 | 6.7 | 7.7 | 6.0 | 6.7 | 7.5 | 8.9 | 10.0 |
| Precipitation (mm) | 0 | 0 | 19 | 76 | 279 | 384 | 459 | 653 | 471 | 403 | 116 | 9 |
| Sunny days | 28 | 28 | 19 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 28 |
| Rainy days | 3 | 0 | 12 | 21 | 31 | 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 Waterloo is at