Average annual temperature is 26.0 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: 18.1 °C
Number of sunny days: 88 days
Number of rainy days: 277 days
Look at detailed online map of Howell
* Weather data for Howell 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) | 35.7 | 35.5 | 35.3 | 34.5 | 35.3 | 32.1 | 31.7 | 32.4 | 31.2 | 32.0 | 33.1 | 35.4 |
| Average daytime temperature (°C) | 33.6 | 34.0 | 32.9 | 32.8 | 31.8 | 29.4 | 29.1 | 28.3 | 29.1 | 29.9 | 31.0 | 33.1 |
| Average temperature (°C) | 26.3 | 27.3 | 26.9 | 27.5 | 26.9 | 25.4 | 25.0 | 24.8 | 25.1 | 25.2 | 25.8 | 26.1 |
| Average night temperature (°C) | 21.4 | 22.3 | 22.7 | 23.9 | 23.9 | 23.0 | 22.7 | 22.7 | 22.8 | 22.8 | 22.7 | 21.5 |
| Absolute minimum temperature (°C) | 18.8 | 20.5 | 20.1 | 22.7 | 22.8 | 21.6 | 21.9 | 20.6 | 22.1 | 21.7 | 21.6 | 18.1 |
| 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) | 9.7 | 9.9 | 9.8 | 9.3 | 8.2 | 7.0 | 7.4 | 5.4 | 7.0 | 6.6 | 8.2 | 9.6 |
| Precipitation (mm) | 9 | 6 | 39 | 140 | 403 | 436 | 589 | 651 | 398 | 436 | 193 | 23 |
| Sunny days | 22 | 19 | 15 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 23 |
| Rainy days | 9 | 9 | 16 | 24 | 31 | 30 | 31 | 31 | 30 | 31 | 27 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Howell is at