Average annual temperature is 12.7 °C
Absolute maximum temperature: 34.6 °C
Absolute minimum temperature: -4.4 °C
Number of sunny days: 212 days
Number of rainy days: 150 days
Number of snow days: 3 days
Look at detailed online map of Randfontein
* Weather data for Randfontein 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) | 31.3 | 27.7 | 26.8 | 23.6 | 20.9 | 16.8 | 18.1 | 20.5 | 27.4 | 29.5 | 34.6 | 33.2 |
| Average daytime temperature (°C) | 25.5 | 23.1 | 23.0 | 19.2 | 14.5 | 10.7 | 11.8 | 16.0 | 18.6 | 21.2 | 26.1 | 25.5 |
| Average temperature (°C) | 18.6 | 16.9 | 16.0 | 12.3 | 8.5 | 5.3 | 5.6 | 8.9 | 11.4 | 13.5 | 18.4 | 17.3 |
| Average night temperature (°C) | 12.6 | 11.9 | 10.5 | 6.6 | 4.0 | 1.0 | 0.8 | 3.0 | 4.5 | 6.6 | 10.8 | 11.1 |
| Absolute minimum temperature (°C) | 5.7 | 7.4 | 3.5 | 0.6 | -1.6 | -3.5 | -4.4 | -3.5 | -4.4 | -0.3 | 4.1 | 7.2 |
| 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 | 14.0 | 14.0 |
| Daylight mean duration (h) | 13.9 | 13.2 | 12.3 | 11.3 | 10.5 | 10.1 | 10.3 | 11.0 | 11.9 | 12.9 | 13.7 | 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 | 14.0 |
| Sunshine mean duration (h) | 11.8 | 10.6 | 10.6 | 9.9 | 8.4 | 8.2 | 8.6 | 9.9 | 9.9 | 11.1 | 11.7 | 11.3 |
| Precipitation (mm) | 94 | 101 | 68 | 47 | 81 | 16 | 22 | 5 | 37 | 23 | 28 | 105 |
| Sunny days | 11 | 8 | 13 | 21 | 20 | 20 | 22 | 27 | 23 | 23 | 17 | 7 |
| Rainy days | 20 | 20 | 18 | 9 | 11 | 10 | 6 | 4 | 7 | 8 | 13 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Randfontein is at