Average annual temperature is 13.6 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -3.9 °C
Number of sunny days: 226 days
Number of rainy days: 139 days
Look at detailed online map of Grootrivier
* Weather data for Grootrivier 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) | 35.3 | 32.9 | 33.2 | 30.7 | 25.3 | 17.5 | 20.0 | 23.9 | 23.2 | 30.4 | 33.4 | 31.1 |
| Average daytime temperature (°C) | 28.4 | 27.2 | 22.6 | 19.7 | 15.7 | 11.3 | 12.7 | 15.3 | 13.1 | 20.5 | 24.5 | 25.3 |
| Average temperature (°C) | 20.9 | 19.9 | 16.2 | 13.8 | 10.0 | 7.8 | 7.5 | 9.3 | 8.2 | 14.1 | 17.5 | 18.1 |
| Average night temperature (°C) | 13.1 | 13.4 | 10.8 | 8.1 | 5.0 | 4.7 | 3.0 | 3.6 | 3.8 | 7.8 | 9.9 | 11.0 |
| Absolute minimum temperature (°C) | 7.7 | 5.1 | 5.4 | 0.5 | -0.5 | 1.3 | -3.9 | -2.1 | -3.7 | -0.1 | 5.7 | 7.2 |
| 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) | 14.1 | 13.3 | 12.3 | 11.3 | 10.4 | 10.0 | 10.2 | 10.9 | 11.9 | 12.9 | 13.8 | 14.3 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 12.9 | 11.6 | 10.1 | 8.2 | 8.2 | 5.1 | 7.8 | 8.7 | 8.2 | 11.2 | 12.1 | 12.7 |
| Precipitation (mm) | 9 | 32 | 60 | 44 | 53 | 233 | 59 | 53 | 128 | 6 | 18 | 17 |
| Sunny days | 23 | 21 | 16 | 15 | 22 | 8 | 20 | 21 | 13 | 21 | 22 | 24 |
| Rainy days | 8 | 7 | 15 | 15 | 9 | 22 | 11 | 10 | 17 | 10 | 8 | 7 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Grootrivier during the most sunny months:
The largest precipitation sum in Grootrivier is at