Average annual temperature is 16.1 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: -2.5 °C
Number of sunny days: 228 days
Number of rainy days: 136 days
Number of snow days: 1 day
Look at detailed online map of Riverdale
* Weather data for Riverdale 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) | 36.4 | 33.3 | 32.1 | 29.6 | 25.3 | 21.0 | 23.4 | 25.4 | 31.2 | 33.4 | 38.0 | 37.2 |
| Average daytime temperature (°C) | 29.8 | 27.1 | 27.8 | 23.4 | 18.0 | 15.2 | 15.6 | 19.9 | 21.1 | 23.3 | 29.9 | 28.5 |
| Average temperature (°C) | 22.3 | 20.2 | 20.0 | 16.2 | 12.0 | 9.6 | 9.6 | 12.7 | 14.1 | 15.7 | 21.3 | 20.2 |
| Average night temperature (°C) | 15.1 | 14.1 | 13.2 | 9.7 | 6.9 | 5.1 | 4.4 | 6.2 | 7.1 | 8.7 | 12.6 | 13.3 |
| Absolute minimum temperature (°C) | 6.6 | 8.2 | 6.3 | 3.9 | 1.2 | 0.4 | -0.8 | -2.4 | -2.5 | 2.3 | 5.9 | 9.7 |
| 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) | 13.9 | 13.2 | 12.3 | 11.3 | 10.5 | 10.1 | 10.3 | 11.0 | 11.9 | 12.9 | 13.7 | 14.2 |
| 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 | 14.0 |
| Sunshine mean duration (h) | 11.6 | 10.9 | 10.9 | 9.6 | 7.9 | 8.5 | 8.8 | 9.9 | 9.8 | 10.8 | 11.8 | 11.6 |
| Precipitation (mm) | 103 | 71 | 31 | 12 | 110 | 11 | 19 | 3 | 60 | 48 | 31 | 70 |
| Sunny days | 11 | 11 | 14 | 21 | 19 | 22 | 24 | 27 | 23 | 22 | 22 | 12 |
| Rainy days | 20 | 17 | 17 | 9 | 12 | 8 | 6 | 4 | 7 | 9 | 8 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Riverdale is at