Average annual temperature is 16.0 °C
Absolute maximum temperature: 36.9 °C
Absolute minimum temperature: -3.5 °C
Number of sunny days: 249 days
Number of rainy days: 116 days
Look at detailed online map of Groot-Suurfontein
* Weather data for Groot-Suurfontein 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) | 33.6 | 31.6 | 31.8 | 27.5 | 25.1 | 20.7 | 21.7 | 23.1 | 30.3 | 32.2 | 36.9 | 34.8 |
| Average daytime temperature (°C) | 29.1 | 26.6 | 26.1 | 22.7 | 18.0 | 14.3 | 14.9 | 18.9 | 21.5 | 25.1 | 28.9 | 29.1 |
| Average temperature (°C) | 22.1 | 20.3 | 19.2 | 15.8 | 11.7 | 8.3 | 8.4 | 11.6 | 14.3 | 17.4 | 21.7 | 21.3 |
| Average night temperature (°C) | 15.9 | 14.6 | 13.1 | 9.7 | 6.5 | 3.5 | 2.9 | 5.1 | 7.3 | 9.9 | 14.1 | 14.4 |
| Absolute minimum temperature (°C) | 7.6 | 10.3 | 6.0 | 3.1 | 0.4 | -0.7 | -3.5 | -3.0 | -1.9 | 3.8 | 6.8 | 9.5 |
| 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 | 11.0 | 11.9 | 12.8 | 13.6 | 14.1 |
| 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) | 12.7 | 11.0 | 10.9 | 10.1 | 8.6 | 8.9 | 8.9 | 10.0 | 10.1 | 11.4 | 11.8 | 11.9 |
| Precipitation (mm) | 68 | 85 | 49 | 7 | 76 | 10 | 6 | 2 | 36 | 13 | 16 | 92 |
| Sunny days | 17 | 11 | 16 | 25 | 22 | 26 | 27 | 28 | 25 | 23 | 18 | 11 |
| Rainy days | 14 | 17 | 15 | 5 | 9 | 4 | 4 | 3 | 5 | 8 | 12 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Groot-Suurfontein is at