Average annual temperature is 21.8 °C
Absolute maximum temperature: 42.1 °C
Absolute minimum temperature: -0.4 °C
Number of sunny days: 329 days
Number of rainy days: 36 days
Look at detailed online map of Van Rooi’s Vlei
* Weather data for Van Rooi’s Vlei 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) | 41.0 | 39.7 | 37.9 | 34.5 | 32.9 | 27.6 | 27.4 | 32.3 | 38.3 | 41.8 | 41.7 | 42.1 |
| Average daytime temperature (°C) | 36.9 | 35.5 | 33.0 | 28.8 | 23.6 | 20.0 | 20.5 | 24.3 | 24.7 | 31.8 | 35.3 | 34.7 |
| Average temperature (°C) | 30.6 | 28.7 | 25.4 | 21.5 | 16.5 | 12.5 | 12.5 | 16.7 | 17.1 | 24.5 | 28.2 | 28.0 |
| Average night temperature (°C) | 22.7 | 20.9 | 17.3 | 13.3 | 9.0 | 5.7 | 4.9 | 8.7 | 8.2 | 15.8 | 19.2 | 19.8 |
| Absolute minimum temperature (°C) | 16.0 | 13.9 | 12.5 | 7.6 | 2.4 | 2.8 | -0.4 | 1.5 | 1.9 | 8.9 | 11.7 | 15.0 |
| 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 | 13.0 | 12.2 | 11.4 | 10.7 | 10.4 | 10.6 | 11.2 | 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) | 12.4 | 11.9 | 11.2 | 10.2 | 9.5 | 8.8 | 9.4 | 10.1 | 10.5 | 11.4 | 12.2 | 12.4 |
| Precipitation (mm) | 6 | 0 | 3 | 0 | 1 | 4 | 2 | 0 | 1 | 1 | 2 | 41 |
| Sunny days | 25 | 26 | 28 | 30 | 28 | 25 | 28 | 30 | 27 | 30 | 27 | 25 |
| Rainy days | 6 | 2 | 3 | 0 | 3 | 5 | 3 | 1 | 3 | 1 | 3 | 6 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Van Rooi’s Vlei is at