Average annual temperature is 18.8 °C
Absolute maximum temperature: 40.3 °C
Absolute minimum temperature: -3.0 °C
Number of sunny days: 272 days
Number of rainy days: 93 days
Look at detailed online map of Ronald’s Vlei
* Weather data for Ronald’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) | 36.6 | 35.5 | 34.0 | 30.1 | 29.1 | 24.8 | 26.1 | 28.9 | 35.4 | 37.3 | 40.3 | 40.3 |
| Average daytime temperature (°C) | 32.3 | 29.7 | 29.5 | 25.5 | 21.1 | 17.4 | 18.7 | 22.9 | 25.6 | 30.1 | 33.1 | 33.3 |
| Average temperature (°C) | 25.3 | 23.2 | 22.1 | 17.3 | 13.6 | 10.1 | 10.6 | 14.3 | 16.7 | 21.7 | 25.2 | 25.3 |
| Average night temperature (°C) | 18.5 | 17.0 | 15.3 | 10.3 | 7.3 | 4.1 | 3.8 | 6.5 | 8.3 | 13.1 | 16.9 | 17.6 |
| Absolute minimum temperature (°C) | 11.0 | 12.0 | 8.5 | 5.0 | 0.4 | -0.1 | -3.0 | -1.1 | 1.2 | 7.8 | 7.9 | 14.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.7 | 13.1 | 12.3 | 11.4 | 10.7 | 10.3 | 10.5 | 11.1 | 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) | 12.7 | 11.5 | 10.7 | 10.4 | 9.0 | 9.2 | 8.9 | 10.0 | 10.3 | 10.9 | 11.8 | 11.4 |
| Precipitation (mm) | 43 | 30 | 31 | 10 | 42 | 8 | 1 | 0 | 10 | 44 | 12 | 79 |
| Sunny days | 21 | 15 | 15 | 23 | 20 | 26 | 29 | 30 | 26 | 26 | 24 | 17 |
| Rainy days | 10 | 13 | 16 | 7 | 11 | 4 | 2 | 1 | 4 | 5 | 6 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ronald’s Vlei is at