Average annual temperature is 30.1 °C
Absolute maximum temperature: 42.3 °C
Absolute minimum temperature: 20.2 °C
Number of sunny days: 229 days
Number of rainy days: 136 days
Look at detailed online map of Biau
* Weather data for Biau 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) | 39.9 | 42.3 | 42.1 | 41.9 | 41.3 | 39.4 | 36.7 | 39.5 | 38.2 | 40.1 | 39.3 | 40.2 |
| Average daytime temperature (°C) | 37.2 | 38.8 | 38.9 | 38.6 | 38.8 | 34.4 | 32.4 | 34.6 | 35.3 | 36.0 | 35.2 | 37.9 |
| Average temperature (°C) | 30.1 | 31.5 | 32.7 | 32.6 | 32.7 | 28.4 | 27.0 | 28.7 | 28.7 | 29.6 | 29.0 | 30.7 |
| Average night temperature (°C) | 23.5 | 24.2 | 26.4 | 27.2 | 27.1 | 24.1 | 22.7 | 23.8 | 23.8 | 24.4 | 23.9 | 23.7 |
| Absolute minimum temperature (°C) | 22.0 | 21.7 | 23.5 | 23.3 | 23.3 | 21.4 | 21.1 | 21.5 | 21.9 | 22.1 | 22.4 | 20.2 |
| 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 | 11.9 | 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) | 9.9 | 10.7 | 10.1 | 9.7 | 10.6 | 9.5 | 9.1 | 10.0 | 9.6 | 10.1 | 9.8 | 10.4 |
| Precipitation (mm) | 0 | 0 | 0 | 35 | 3 | 61 | 84 | 59 | 50 | 43 | 30 | 0 |
| Sunny days | 31 | 28 | 29 | 22 | 23 | 8 | 11 | 10 | 9 | 16 | 12 | 30 |
| Rainy days | 0 | 0 | 2 | 8 | 8 | 22 | 20 | 21 | 21 | 15 | 18 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Biau is at