Average annual temperature is 30.0 °C
Absolute maximum temperature: 42.0 °C
Absolute minimum temperature: 19.5 °C
Number of sunny days: 219 days
Number of rainy days: 146 days
Look at detailed online map of Mer
* Weather data for Mer South Sudan is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 40.1 | 41.9 | 41.6 | 41.8 | 42.0 | 38.6 | 36.6 | 39.2 | 39.1 | 40.3 | 39.4 | 40.4 |
| Average daytime temperature (°C) | 37.0 | 38.6 | 38.9 | 38.9 | 38.9 | 34.1 | 32.3 | 34.8 | 35.6 | 36.8 | 35.3 | 38.1 |
| Average temperature (°C) | 29.8 | 31.2 | 32.6 | 32.8 | 32.6 | 28.2 | 27.0 | 28.5 | 28.7 | 29.8 | 28.8 | 30.5 |
| Average night temperature (°C) | 23.1 | 24.0 | 26.4 | 27.4 | 27.0 | 24.1 | 22.7 | 23.5 | 23.6 | 24.4 | 23.6 | 23.6 |
| Absolute minimum temperature (°C) | 21.2 | 21.4 | 22.6 | 22.8 | 23.4 | 21.6 | 21.3 | 21.7 | 22.2 | 21.8 | 21.6 | 19.5 |
| 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 | 12.5 | 12.4 | 12.2 | 12.0 | 11.8 | 11.7 |
| 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) | 10.4 | 10.7 | 10.0 | 10.2 | 10.6 | 9.7 | 9.0 | 10.4 | 10.0 | 9.6 | 9.8 | 10.3 |
| Precipitation (mm) | 0 | 0 | 1 | 30 | 0 | 79 | 63 | 77 | 47 | 55 | 57 | 0 |
| Sunny days | 31 | 28 | 26 | 23 | 29 | 5 | 11 | 8 | 8 | 11 | 10 | 29 |
| Rainy days | 0 | 0 | 5 | 7 | 2 | 25 | 20 | 23 | 22 | 20 | 20 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Mer is at