Average annual temperature is 15.3 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: -2.2 °C
Number of sunny days: 187 days
Number of rainy days: 178 days
Look at detailed online map of Glen Grey
* Weather data for Glen Grey 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 | 32.1 | 29.5 | 28.0 | 25.4 | 21.7 | 23.6 | 26.1 | 32.0 | 33.5 | 37.5 | 34.9 |
| Average daytime temperature (°C) | 27.3 | 24.7 | 25.4 | 23.0 | 17.7 | 16.1 | 16.8 | 20.9 | 22.4 | 22.0 | 28.4 | 25.4 |
| Average temperature (°C) | 20.2 | 18.9 | 18.5 | 15.5 | 11.4 | 9.9 | 9.9 | 12.5 | 14.2 | 14.7 | 19.7 | 18.0 |
| Average night temperature (°C) | 14.1 | 14.1 | 12.9 | 9.2 | 5.9 | 5.0 | 3.8 | 5.1 | 6.5 | 8.3 | 11.9 | 12.5 |
| Absolute minimum temperature (°C) | 7.6 | 10.4 | 5.8 | 1.6 | 0.4 | 0.4 | -2.2 | -1.6 | -1.1 | 3.4 | 4.9 | 8.9 |
| 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 | 14.2 |
| 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) | 10.2 | 8.9 | 10.2 | 9.6 | 7.4 | 8.6 | 8.7 | 9.7 | 9.5 | 8.8 | 11.3 | 8.8 |
| Precipitation (mm) | 138 | 152 | 67 | 34 | 91 | 15 | 8 | 3 | 28 | 47 | 43 | 111 |
| Sunny days | 8 | 5 | 10 | 22 | 16 | 23 | 22 | 27 | 23 | 14 | 12 | 5 |
| Rainy days | 23 | 23 | 21 | 8 | 15 | 7 | 9 | 4 | 7 | 17 | 18 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Glen Grey is at