Average annual temperature is 16.8 °C
Absolute maximum temperature: 41.3 °C
Absolute minimum temperature: 3.5 °C
Number of sunny days: 284 days
Number of rainy days: 81 days
Look at detailed online map of Grootmis
* Weather data for Grootmis 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) | 31.7 | 27.5 | 36.1 | 38.0 | 29.0 | 26.8 | 29.3 | 34.8 | 34.0 | 35.1 | 41.3 | 27.1 |
| Average daytime temperature (°C) | 23.5 | 23.3 | 22.3 | 23.8 | 19.8 | 17.3 | 20.3 | 20.7 | 19.1 | 23.3 | 24.4 | 22.7 |
| Average temperature (°C) | 19.2 | 19.2 | 18.3 | 18.0 | 14.7 | 13.5 | 13.9 | 15.0 | 14.0 | 18.1 | 19.1 | 18.6 |
| Average night temperature (°C) | 15.2 | 15.2 | 14.6 | 13.0 | 10.3 | 10.4 | 8.9 | 10.3 | 9.7 | 13.6 | 14.2 | 14.5 |
| Absolute minimum temperature (°C) | 12.6 | 12.2 | 11.5 | 8.1 | 6.8 | 6.5 | 3.5 | 5.9 | 6.2 | 10.1 | 12.0 | 12.3 |
| 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 | 13.0 | 14.0 |
| Daylight mean duration (h) | 13.8 | 13.1 | 12.3 | 11.4 | 10.6 | 10.3 | 10.4 | 11.1 | 11.9 | 12.8 | 13.6 | 14.0 |
| 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 | 13.0 |
| Sunshine mean duration (h) | 12.0 | 11.2 | 10.2 | 10.0 | 8.9 | 7.1 | 9.2 | 8.9 | 10.3 | 11.3 | 11.3 | 12.3 |
| Precipitation (mm) | 2 | 6 | 12 | 2 | 27 | 56 | 19 | 8 | 17 | 4 | 8 | 7 |
| Sunny days | 27 | 20 | 21 | 27 | 28 | 14 | 24 | 24 | 23 | 27 | 23 | 26 |
| Rainy days | 4 | 8 | 10 | 3 | 3 | 16 | 7 | 7 | 7 | 4 | 7 | 5 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Grootmis is at