Average annual temperature is 16.7 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: -2.2 °C
Number of sunny days: 247 days
Number of rainy days: 118 days
Look at detailed online map of Grootgeluk
* Weather data for Grootgeluk 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) | 34.6 | 34.0 | 29.6 | 27.7 | 26.0 | 21.8 | 23.4 | 24.4 | 31.1 | 34.4 | 37.6 | 36.2 |
| Average daytime temperature (°C) | 30.5 | 27.9 | 26.6 | 23.7 | 19.3 | 15.6 | 16.3 | 19.9 | 23.4 | 27.3 | 30.3 | 29.6 |
| Average temperature (°C) | 23.4 | 21.2 | 19.8 | 15.9 | 12.2 | 8.6 | 8.7 | 11.7 | 15.2 | 19.1 | 22.5 | 22.1 |
| Average night temperature (°C) | 16.7 | 15.3 | 13.5 | 9.1 | 6.4 | 2.8 | 2.6 | 4.3 | 7.2 | 11.0 | 14.6 | 15.4 |
| Absolute minimum temperature (°C) | 9.7 | 11.0 | 8.4 | 3.4 | 0.0 | -0.4 | -2.2 | -1.3 | 0.5 | 6.1 | 5.8 | 11.4 |
| 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 | 10.6 | 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) | 12.3 | 10.6 | 10.6 | 10.1 | 8.9 | 9.2 | 9.1 | 10.1 | 10.4 | 10.9 | 11.8 | 11.3 |
| Precipitation (mm) | 59 | 74 | 37 | 27 | 63 | 6 | 4 | 2 | 13 | 42 | 13 | 99 |
| Sunny days | 16 | 11 | 10 | 24 | 20 | 26 | 26 | 28 | 27 | 24 | 20 | 15 |
| Rainy days | 15 | 17 | 21 | 6 | 11 | 4 | 5 | 3 | 3 | 7 | 10 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Grootgeluk is at