Average annual temperature is 26.3 °C
Absolute maximum temperature: 38.3 °C
Absolute minimum temperature: 17.8 °C
Number of sunny days: 105 days
Number of rainy days: 260 days
Look at detailed online map of Rosar
* Weather data for Rosar 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) | 37.0 | 38.2 | 38.3 | 37.2 | 36.3 | 33.3 | 33.1 | 33.2 | 32.3 | 33.3 | 34.0 | 36.0 |
| Average daytime temperature (°C) | 35.4 | 35.9 | 34.8 | 34.7 | 32.9 | 30.3 | 29.8 | 28.9 | 29.9 | 30.6 | 31.6 | 33.4 |
| Average temperature (°C) | 26.9 | 27.8 | 27.4 | 27.9 | 27.1 | 25.3 | 25.0 | 24.7 | 25.1 | 25.5 | 26.3 | 26.3 |
| Average night temperature (°C) | 21.1 | 22.5 | 22.9 | 23.8 | 24.1 | 23.1 | 22.6 | 22.6 | 22.7 | 22.8 | 23.0 | 21.4 |
| Absolute minimum temperature (°C) | 17.8 | 21.5 | 20.6 | 22.8 | 23.1 | 21.9 | 21.3 | 21.9 | 21.5 | 22.1 | 21.8 | 17.8 |
| 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 | 12.6 | 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) | 9.8 | 9.9 | 9.5 | 8.9 | 7.3 | 6.7 | 7.4 | 5.8 | 6.6 | 7.0 | 8.5 | 9.8 |
| Precipitation (mm) | 1 | 0 | 21 | 84 | 312 | 473 | 552 | 773 | 429 | 413 | 115 | 4 |
| Sunny days | 28 | 27 | 16 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 23 |
| Rainy days | 3 | 1 | 15 | 25 | 31 | 30 | 31 | 31 | 30 | 31 | 24 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rosar is at