Average annual temperature is 13.1 °C
Absolute maximum temperature: 28.6 °C
Absolute minimum temperature: -2.4 °C
Number of sunny days: 190 days
Number of rainy days: 173 days
Number of snow days: 2 days
Look at detailed online map of Groenkloof
* Weather data for Groenkloof 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) | 25.0 | 24.2 | 24.7 | 22.5 | 20.8 | 19.7 | 19.1 | 22.8 | 28.1 | 28.6 | 27.6 | 26.0 |
| Average daytime temperature (°C) | 21.3 | 19.9 | 20.2 | 19.3 | 15.9 | 15.1 | 13.1 | 17.1 | 21.8 | 19.9 | 22.0 | 21.2 |
| Average temperature (°C) | 16.0 | 15.4 | 15.1 | 13.6 | 10.6 | 9.1 | 7.2 | 10.1 | 14.5 | 13.6 | 16.0 | 15.9 |
| Average night temperature (°C) | 10.6 | 12.1 | 10.6 | 8.5 | 6.4 | 4.1 | 2.0 | 3.8 | 7.8 | 8.2 | 10.4 | 11.4 |
| Absolute minimum temperature (°C) | 6.4 | 9.1 | 6.1 | 5.3 | 0.2 | 0.1 | -2.4 | -2.3 | -1.1 | -1.1 | 1.2 | 7.0 |
| 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 | 11.4 | 10.8 | 10.4 | 10.6 | 11.2 | 11.9 | 12.7 | 13.5 | 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) | 10.8 | 8.7 | 10.5 | 10.1 | 9.0 | 9.5 | 8.9 | 10.0 | 10.4 | 8.6 | 10.4 | 9.7 |
| Precipitation (mm) | 85 | 202 | 54 | 8 | 44 | 4 | 17 | 0 | 17 | 103 | 92 | 172 |
| Sunny days | 14 | 4 | 9 | 22 | 17 | 27 | 24 | 29 | 20 | 13 | 8 | 3 |
| Rainy days | 17 | 24 | 22 | 8 | 14 | 3 | 5 | 2 | 10 | 18 | 22 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Groenkloof is at