Average annual temperature is 26.2 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: 19.6 °C
Number of sunny days: 90 days
Number of rainy days: 275 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) | 35.1 | 34.7 | 34.8 | 33.8 | 34.7 | 31.4 | 31.1 | 31.3 | 31.0 | 31.6 | 32.6 | 34.3 |
| Average daytime temperature (°C) | 33.2 | 33.5 | 32.5 | 32.5 | 31.5 | 29.0 | 28.7 | 28.0 | 28.8 | 29.7 | 30.7 | 32.7 |
| Average temperature (°C) | 26.6 | 27.3 | 27.0 | 27.7 | 27.1 | 25.6 | 25.1 | 24.9 | 25.2 | 25.4 | 26.0 | 26.3 |
| Average night temperature (°C) | 22.3 | 23.1 | 23.4 | 24.4 | 24.4 | 23.5 | 23.0 | 23.0 | 23.1 | 23.0 | 23.1 | 22.2 |
| Absolute minimum temperature (°C) | 20.6 | 21.5 | 21.3 | 23.6 | 23.3 | 22.5 | 22.2 | 21.4 | 22.5 | 22.4 | 22.3 | 19.6 |
| 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 | 12.6 | 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 | 9.9 | 9.5 | 8.5 | 7.2 | 7.5 | 5.8 | 7.3 | 7.2 | 8.6 | 9.8 |
| Precipitation (mm) | 7 | 7 | 34 | 101 | 349 | 421 | 657 | 639 | 417 | 399 | 146 | 24 |
| Sunny days | 24 | 18 | 17 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 23 |
| Rainy days | 7 | 10 | 14 | 24 | 31 | 30 | 31 | 31 | 30 | 31 | 28 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Waterloo is at