Average annual temperature is 15.5 °C
Absolute maximum temperature: 36.3 °C
Absolute minimum temperature: -3.1 °C
Number of sunny days: 240 days
Number of rainy days: 125 days
Look at detailed online map of Groenvlakte
* Weather data for Groenvlakte 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) | 33.5 | 31.5 | 27.9 | 26.2 | 24.3 | 20.7 | 21.7 | 22.8 | 29.9 | 32.9 | 36.3 | 35.1 |
| Average daytime temperature (°C) | 28.9 | 26.1 | 25.4 | 22.3 | 18.0 | 14.5 | 15.3 | 19.1 | 22.0 | 25.6 | 29.3 | 28.4 |
| Average temperature (°C) | 21.6 | 19.6 | 18.5 | 14.9 | 11.1 | 7.8 | 8.0 | 11.1 | 14.1 | 17.5 | 21.6 | 20.8 |
| Average night temperature (°C) | 15.1 | 14.0 | 12.4 | 8.4 | 5.6 | 2.5 | 1.9 | 4.1 | 6.4 | 9.5 | 13.6 | 14.2 |
| Absolute minimum temperature (°C) | 7.2 | 10.0 | 6.0 | 3.1 | -0.3 | -1.3 | -3.1 | -2.7 | -1.5 | 3.9 | 5.3 | 9.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 14.0 | 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 | 10.6 | 10.2 | 10.4 | 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) | 12.3 | 10.6 | 10.7 | 10.1 | 8.9 | 8.9 | 8.9 | 10.0 | 10.1 | 11.3 | 11.7 | 11.6 |
| Precipitation (mm) | 74 | 73 | 47 | 19 | 68 | 5 | 14 | 0 | 29 | 22 | 7 | 101 |
| Sunny days | 13 | 8 | 13 | 22 | 21 | 26 | 26 | 29 | 26 | 24 | 21 | 11 |
| Rainy days | 18 | 20 | 18 | 8 | 10 | 4 | 5 | 2 | 4 | 7 | 9 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Groenvlakte is at