Average annual temperature is 29.5 °C
Absolute maximum temperature: 41.2 °C
Absolute minimum temperature: 19.7 °C
Number of sunny days: 230 days
Number of rainy days: 135 days
Look at detailed online map of Riyau
* Weather data for Riyau 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) | 40.5 | 41.1 | 41.0 | 41.2 | 41.0 | 37.4 | 36.8 | 37.5 | 37.1 | 38.0 | 38.3 | 40.0 |
| Average daytime temperature (°C) | 37.2 | 38.3 | 38.4 | 38.0 | 37.7 | 33.4 | 32.5 | 33.5 | 34.5 | 35.4 | 34.8 | 37.7 |
| Average temperature (°C) | 29.8 | 31.1 | 32.1 | 31.8 | 31.4 | 27.6 | 27.0 | 27.5 | 28.0 | 28.7 | 28.4 | 30.1 |
| Average night temperature (°C) | 23.0 | 24.1 | 26.1 | 26.2 | 25.8 | 23.6 | 22.9 | 22.9 | 23.0 | 23.7 | 23.5 | 23.1 |
| Absolute minimum temperature (°C) | 20.9 | 21.5 | 24.1 | 22.4 | 23.7 | 22.0 | 21.5 | 21.3 | 21.9 | 21.8 | 22.1 | 19.7 |
| 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 | 12.5 | 12.5 | 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) | 10.6 | 10.8 | 9.6 | 9.6 | 10.6 | 9.6 | 9.6 | 10.3 | 10.2 | 9.7 | 9.1 | 10.3 |
| Precipitation (mm) | 0 | 0 | 1 | 32 | 10 | 71 | 60 | 94 | 53 | 57 | 17 | 0 |
| Sunny days | 31 | 28 | 26 | 24 | 26 | 10 | 14 | 7 | 10 | 9 | 15 | 30 |
| Rainy days | 0 | 0 | 5 | 6 | 5 | 20 | 17 | 24 | 20 | 22 | 15 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Riyau is at