Average annual temperature is 20.2 °C
Absolute maximum temperature: 41.1 °C
Absolute minimum temperature: 0.2 °C
Number of sunny days: 305 days
Number of rainy days: 60 days
Look at detailed online map of Geelbeksdam (1)
* Weather data for Geelbeksdam (1) 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) | 40.8 | 38.0 | 35.9 | 32.5 | 29.8 | 25.5 | 26.8 | 29.3 | 35.6 | 38.5 | 41.1 | 40.8 |
| Average daytime temperature (°C) | 36.1 | 34.2 | 31.5 | 27.4 | 22.4 | 18.1 | 19.3 | 23.1 | 24.0 | 30.0 | 34.4 | 34.0 |
| Average temperature (°C) | 29.1 | 26.9 | 24.0 | 19.4 | 14.7 | 10.6 | 11.2 | 14.7 | 15.8 | 22.2 | 26.7 | 27.0 |
| Average night temperature (°C) | 21.0 | 19.1 | 16.5 | 11.4 | 7.6 | 4.3 | 4.0 | 6.7 | 7.4 | 13.8 | 18.2 | 19.2 |
| Absolute minimum temperature (°C) | 13.3 | 13.6 | 11.0 | 6.5 | 1.3 | 0.7 | 0.2 | 1.6 | 2.1 | 7.2 | 11.3 | 15.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 |
| Daylight mean duration (h) | 13.8 | 13.1 | 12.3 | 11.4 | 10.7 | 10.3 | 10.5 | 11.1 | 11.9 | 12.8 | 13.6 | 14.0 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 12.6 | 12.0 | 10.8 | 10.2 | 9.3 | 8.3 | 9.1 | 10.1 | 10.5 | 11.3 | 12.4 | 12.1 |
| Precipitation (mm) | 2 | 9 | 22 | 2 | 30 | 8 | 3 | 0 | 22 | 5 | 3 | 84 |
| Sunny days | 25 | 23 | 22 | 29 | 21 | 26 | 26 | 30 | 26 | 27 | 26 | 24 |
| Rainy days | 6 | 5 | 9 | 1 | 10 | 4 | 5 | 1 | 4 | 4 | 4 | 7 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Geelbeksdam (1) is at