Average annual temperature is 16.3 °C
Absolute maximum temperature: 39.0 °C
Absolute minimum temperature: -2.3 °C
Number of sunny days: 242 days
Number of rainy days: 123 days
Look at detailed online map of Greystone
* Weather data for Greystone 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) | 37.1 | 33.9 | 32.4 | 29.9 | 26.0 | 21.7 | 23.2 | 26.3 | 32.3 | 34.1 | 37.8 | 39.0 |
| Average daytime temperature (°C) | 30.1 | 27.3 | 28.1 | 23.8 | 18.5 | 15.9 | 16.4 | 20.7 | 21.6 | 23.3 | 30.4 | 28.6 |
| Average temperature (°C) | 22.5 | 20.4 | 20.2 | 16.4 | 12.0 | 10.1 | 9.9 | 12.9 | 14.3 | 15.8 | 21.6 | 20.4 |
| Average night temperature (°C) | 15.1 | 14.3 | 13.5 | 9.6 | 6.4 | 5.5 | 4.2 | 5.7 | 7.0 | 8.8 | 12.8 | 13.7 |
| Absolute minimum temperature (°C) | 6.5 | 8.5 | 7.0 | 3.0 | -0.2 | 1.8 | -1.7 | -2.3 | -2.0 | 2.3 | 5.9 | 10.1 |
| 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) | 14.0 | 13.2 | 12.3 | 11.3 | 10.5 | 10.1 | 10.3 | 11.0 | 11.9 | 12.9 | 13.7 | 14.2 |
| 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) | 11.4 | 10.7 | 10.7 | 9.4 | 7.5 | 8.6 | 8.7 | 9.9 | 9.6 | 10.5 | 11.8 | 11.2 |
| Precipitation (mm) | 75 | 90 | 30 | 20 | 94 | 13 | 19 | 3 | 43 | 41 | 29 | 46 |
| Sunny days | 15 | 12 | 19 | 23 | 18 | 23 | 24 | 28 | 23 | 19 | 23 | 15 |
| Rainy days | 16 | 16 | 12 | 7 | 13 | 7 | 7 | 3 | 7 | 12 | 7 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Greystone is at