Average annual temperature is 15.7 °C
Absolute maximum temperature: 39.9 °C
Absolute minimum temperature: -0.2 °C
Number of sunny days: 186 days
Number of rainy days: 179 days
Look at detailed online map of Rockdale
* Weather data for Rockdale 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) | 39.9 | 37.1 | 33.1 | 35.8 | 30.7 | 23.0 | 24.9 | 30.8 | 29.6 | 30.0 | 37.4 | 36.0 |
| Average daytime temperature (°C) | 28.3 | 26.1 | 24.7 | 22.8 | 19.0 | 16.9 | 16.9 | 20.3 | 18.2 | 19.6 | 24.6 | 23.9 |
| Average temperature (°C) | 21.4 | 20.2 | 18.7 | 16.2 | 13.1 | 12.0 | 10.4 | 13.7 | 12.2 | 14.7 | 17.9 | 18.1 |
| Average night temperature (°C) | 16.0 | 15.6 | 14.1 | 11.3 | 8.3 | 7.8 | 5.4 | 7.9 | 7.7 | 10.3 | 11.9 | 13.1 |
| Absolute minimum temperature (°C) | 10.3 | 10.1 | 9.1 | 6.5 | 4.1 | 4.4 | -0.2 | 2.1 | 3.4 | 6.3 | 8.1 | 9.0 |
| 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 | 11.2 | 10.4 | 9.9 | 10.1 | 10.9 | 11.9 | 12.9 | 13.9 | 14.4 |
| 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) | 10.9 | 9.1 | 9.3 | 8.4 | 7.4 | 6.5 | 8.3 | 9.5 | 9.1 | 9.0 | 11.2 | 10.7 |
| Precipitation (mm) | 40 | 56 | 87 | 27 | 94 | 77 | 42 | 11 | 113 | 69 | 14 | 57 |
| Sunny days | 17 | 11 | 17 | 17 | 18 | 12 | 18 | 21 | 17 | 10 | 16 | 12 |
| Rainy days | 14 | 17 | 14 | 13 | 13 | 18 | 13 | 10 | 13 | 21 | 14 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rockdale is at