Average annual temperature is 25.6 °C
Absolute maximum temperature: 34.6 °C
Absolute minimum temperature: 18.9 °C
Number of sunny days: 41 days
Number of rainy days: 324 days
Look at detailed online map of Sum
* Weather data for Sum Liberia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 34.0 | 34.6 | 33.3 | 32.9 | 32.4 | 29.9 | 30.7 | 30.9 | 31.5 | 31.5 | 31.9 | 34.1 |
| Average daytime temperature (°C) | 32.2 | 32.2 | 31.4 | 30.9 | 30.3 | 28.2 | 27.9 | 28.2 | 28.3 | 29.0 | 29.9 | 32.1 |
| Average temperature (°C) | 26.1 | 26.7 | 26.4 | 26.2 | 26.0 | 24.8 | 24.5 | 24.7 | 24.8 | 24.9 | 25.6 | 26.1 |
| Average night temperature (°C) | 22.5 | 23.5 | 23.4 | 23.6 | 23.6 | 22.9 | 22.5 | 22.8 | 22.6 | 22.8 | 22.9 | 22.1 |
| Absolute minimum temperature (°C) | 20.4 | 22.6 | 22.1 | 22.5 | 22.3 | 21.4 | 21.4 | 21.7 | 21.5 | 22.1 | 22.0 | 18.9 |
| 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) | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 | 12.5 | 12.3 | 12.2 | 12.0 | 11.8 | 11.8 |
| 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) | 9.4 | 9.4 | 8.6 | 8.3 | 7.5 | 6.8 | 6.7 | 6.1 | 6.8 | 6.4 | 8.4 | 10.2 |
| Precipitation (mm) | 31 | 26 | 102 | 194 | 294 | 367 | 577 | 490 | 454 | 424 | 177 | 15 |
| Sunny days | 13 | 6 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 18 |
| Rainy days | 18 | 22 | 28 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 29 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Sum during the most sunny months:
The largest precipitation sum in Sum is at