Average annual temperature is 18.2 °C
Absolute maximum temperature: 36.8 °C
Absolute minimum temperature: -3.0 °C
Number of sunny days: 271 days
Number of rainy days: 94 days
Look at detailed online map of Sias
* Weather data for Sias South Africa is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 33.4 | 30.2 | 30.9 | 28.4 | 28.0 | 24.2 | 23.9 | 29.3 | 32.1 | 35.5 | 36.5 | 36.8 |
| Average daytime temperature (°C) | 29.3 | 26.4 | 27.2 | 25.5 | 22.6 | 19.9 | 18.6 | 22.6 | 26.9 | 29.3 | 31.5 | 30.4 |
| Average temperature (°C) | 23.1 | 20.7 | 20.5 | 17.4 | 14.8 | 11.1 | 10.5 | 13.8 | 18.1 | 21.4 | 23.8 | 23.6 |
| Average night temperature (°C) | 16.3 | 15.5 | 14.3 | 9.8 | 7.9 | 3.3 | 3.2 | 5.0 | 8.9 | 12.9 | 15.8 | 16.8 |
| Absolute minimum temperature (°C) | 12.8 | 10.6 | 11.1 | 5.3 | 0.3 | -1.7 | -3.0 | -0.4 | 2.2 | 8.1 | 6.5 | 10.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.6 | 13.0 | 12.2 | 11.5 | 10.8 | 10.5 | 10.7 | 11.2 | 11.9 | 12.7 | 13.4 | 13.8 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 12.3 | 10.0 | 10.6 | 10.5 | 9.6 | 9.5 | 9.7 | 10.3 | 10.8 | 10.8 | 11.6 | 11.5 |
| Precipitation (mm) | 39 | 107 | 33 | 12 | 28 | 2 | 0 | 0 | 7 | 26 | 27 | 89 |
| Sunny days | 22 | 8 | 19 | 25 | 22 | 28 | 29 | 30 | 26 | 26 | 20 | 16 |
| Rainy days | 9 | 20 | 12 | 5 | 9 | 2 | 2 | 1 | 4 | 5 | 10 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sias is at