Average annual temperature is 30.6 °C
Absolute maximum temperature: 42.1 °C
Absolute minimum temperature: 20.7 °C
Number of sunny days: 225 days
Number of rainy days: 140 days
Look at detailed online map of Riek
* Weather data for Riek 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) | 40.3 | 42.0 | 41.1 | 41.9 | 42.1 | 39.2 | 38.8 | 40.0 | 39.3 | 40.3 | 38.5 | 40.2 |
| Average daytime temperature (°C) | 37.8 | 39.3 | 39.3 | 38.9 | 38.9 | 35.3 | 34.0 | 35.0 | 35.2 | 36.6 | 34.9 | 38.0 |
| Average temperature (°C) | 30.8 | 32.2 | 32.9 | 33.1 | 32.9 | 29.3 | 28.4 | 28.9 | 28.7 | 30.1 | 28.9 | 30.8 |
| Average night temperature (°C) | 24.4 | 25.2 | 26.3 | 27.5 | 27.5 | 24.7 | 23.8 | 24.1 | 23.8 | 24.9 | 24.0 | 24.0 |
| Absolute minimum temperature (°C) | 22.8 | 23.1 | 23.4 | 23.6 | 24.5 | 22.5 | 21.5 | 22.2 | 20.7 | 22.4 | 22.4 | 21.1 |
| 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) | 10.2 | 10.6 | 10.4 | 10.2 | 10.0 | 9.5 | 8.8 | 9.8 | 9.0 | 9.7 | 9.8 | 10.6 |
| Precipitation (mm) | 0 | 0 | 0 | 27 | 3 | 89 | 62 | 45 | 68 | 32 | 30 | 0 |
| Sunny days | 31 | 28 | 30 | 22 | 23 | 8 | 11 | 12 | 6 | 15 | 11 | 28 |
| Rainy days | 0 | 0 | 1 | 8 | 8 | 22 | 20 | 19 | 24 | 16 | 19 | 3 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Riek is at