Average annual temperature is 20.6 °C
Absolute maximum temperature: 41.6 °C
Absolute minimum temperature: -0.3 °C
Number of sunny days: 302 days
Number of rainy days: 63 days
Look at detailed online map of Groendal
* Weather data for Groendal 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) | 41.5 | 38.4 | 36.3 | 32.6 | 30.3 | 25.8 | 27.5 | 30.5 | 36.2 | 38.8 | 41.6 | 41.4 |
| Average daytime temperature (°C) | 36.7 | 34.6 | 32.0 | 28.0 | 22.9 | 18.6 | 19.8 | 23.6 | 24.5 | 30.5 | 35.0 | 34.6 |
| Average temperature (°C) | 29.5 | 27.2 | 24.5 | 19.8 | 15.0 | 11.1 | 11.5 | 15.1 | 16.3 | 22.6 | 27.2 | 27.4 |
| Average night temperature (°C) | 21.3 | 19.3 | 16.7 | 11.8 | 8.1 | 4.7 | 4.3 | 7.0 | 7.8 | 14.1 | 18.6 | 19.5 |
| Absolute minimum temperature (°C) | 13.7 | 14.1 | 12.0 | 7.4 | 1.2 | 0.9 | -0.3 | 1.2 | 1.9 | 7.7 | 12.7 | 16.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 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 | 11.9 | 10.8 | 10.3 | 9.3 | 8.3 | 9.1 | 10.1 | 10.5 | 11.3 | 12.4 | 12.2 |
| Precipitation (mm) | 4 | 6 | 32 | 1 | 31 | 6 | 1 | 1 | 21 | 6 | 3 | 70 |
| Sunny days | 26 | 21 | 23 | 29 | 22 | 25 | 27 | 27 | 26 | 28 | 25 | 23 |
| Rainy days | 5 | 7 | 8 | 1 | 9 | 5 | 4 | 4 | 4 | 3 | 5 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Groendal is at