Average annual temperature is 22.4 °C
Absolute maximum temperature: 42.9 °C
Absolute minimum temperature: -2.0 °C
Number of sunny days: 329 days
Number of rainy days: 36 days
Look at detailed online map of Groot Mier
* Weather data for Groot Mier 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) | 40.2 | 39.4 | 38.8 | 35.1 | 32.8 | 28.1 | 29.7 | 33.0 | 39.1 | 41.7 | 42.9 | 42.1 |
| Average daytime temperature (°C) | 36.4 | 35.5 | 33.8 | 29.4 | 24.9 | 21.4 | 21.8 | 25.6 | 26.4 | 32.9 | 36.2 | 36.2 |
| Average temperature (°C) | 30.3 | 29.0 | 26.5 | 21.9 | 17.5 | 13.4 | 13.2 | 17.1 | 17.8 | 25.1 | 28.5 | 29.0 |
| Average night temperature (°C) | 23.0 | 21.4 | 18.3 | 13.8 | 9.9 | 5.9 | 5.2 | 9.0 | 8.4 | 16.0 | 19.6 | 20.4 |
| Absolute minimum temperature (°C) | 16.8 | 14.6 | 12.7 | 6.9 | 4.7 | 2.2 | -2.0 | 1.3 | 2.3 | 9.6 | 12.3 | 16.2 |
| 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) | 13.6 | 13.0 | 12.2 | 11.5 | 10.8 | 10.5 | 10.6 | 11.2 | 11.9 | 12.7 | 13.4 | 13.8 |
| 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) | 12.4 | 11.8 | 11.1 | 10.2 | 9.6 | 9.4 | 9.6 | 10.2 | 10.7 | 11.5 | 12.2 | 12.4 |
| Precipitation (mm) | 7 | 2 | 1 | 11 | 1 | 1 | 0 | 0 | 0 | 0 | 3 | 39 |
| Sunny days | 26 | 24 | 27 | 28 | 27 | 26 | 31 | 31 | 30 | 30 | 24 | 25 |
| Rainy days | 5 | 4 | 4 | 2 | 4 | 4 | 0 | 0 | 0 | 1 | 6 | 6 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Groot Mier is at