Average annual temperature is 18.5 °C
Absolute maximum temperature: 39.8 °C
Absolute minimum temperature: -3.2 °C
Number of sunny days: 273 days
Number of rainy days: 92 days
Look at detailed online map of Grey Hill
* Weather data for Grey Hill 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) | 36.1 | 36.1 | 33.0 | 29.3 | 28.9 | 24.3 | 24.6 | 28.1 | 32.8 | 38.1 | 39.8 | 37.3 |
| Average daytime temperature (°C) | 31.6 | 29.7 | 29.2 | 26.6 | 22.3 | 18.8 | 18.2 | 22.5 | 25.2 | 29.4 | 32.8 | 32.2 |
| Average temperature (°C) | 24.7 | 22.7 | 21.8 | 18.1 | 14.3 | 10.5 | 10.1 | 13.7 | 16.2 | 21.1 | 24.6 | 24.5 |
| Average night temperature (°C) | 17.6 | 16.0 | 14.6 | 10.4 | 6.8 | 3.6 | 2.9 | 5.6 | 7.3 | 12.3 | 16.1 | 17.0 |
| Absolute minimum temperature (°C) | 10.4 | 10.9 | 8.3 | 4.4 | -0.8 | -0.3 | -3.2 | -1.3 | 0.2 | 6.6 | 6.9 | 13.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.7 | 13.1 | 12.3 | 11.4 | 10.7 | 10.4 | 10.5 | 11.1 | 11.9 | 12.8 | 13.5 | 13.9 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 12.6 | 11.8 | 10.8 | 10.5 | 9.3 | 9.3 | 9.4 | 10.3 | 10.5 | 11.0 | 11.6 | 11.8 |
| Precipitation (mm) | 25 | 44 | 28 | 22 | 31 | 11 | 2 | 0 | 4 | 21 | 9 | 141 |
| Sunny days | 17 | 12 | 18 | 23 | 24 | 26 | 27 | 31 | 27 | 27 | 25 | 16 |
| Rainy days | 14 | 16 | 13 | 7 | 7 | 4 | 4 | 0 | 3 | 4 | 5 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Grey Hill is at