Average annual temperature is 17.2 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: -1.0 °C
Number of sunny days: 239 days
Number of rainy days: 126 days
Look at detailed online map of Rietvalleirand
* Weather data for Rietvalleirand 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) | 30.9 | 28.4 | 29.9 | 26.5 | 25.2 | 21.7 | 22.9 | 28.1 | 29.9 | 33.0 | 33.7 | 32.5 |
| Average daytime temperature (°C) | 27.4 | 24.4 | 25.7 | 23.6 | 19.6 | 18.7 | 17.4 | 21.4 | 26.2 | 26.8 | 27.3 | 26.9 |
| Average temperature (°C) | 21.2 | 19.3 | 19.5 | 17.1 | 13.6 | 11.6 | 10.5 | 13.7 | 18.5 | 19.4 | 20.6 | 20.9 |
| Average night temperature (°C) | 14.8 | 15.0 | 13.7 | 11.2 | 8.8 | 5.7 | 4.7 | 6.7 | 10.7 | 12.2 | 14.2 | 15.1 |
| Absolute minimum temperature (°C) | 11.6 | 12.0 | 10.0 | 6.6 | 4.5 | 2.2 | -1.0 | 1.6 | 4.2 | 5.7 | 4.9 | 11.2 |
| 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) | 13.5 | 13.0 | 12.2 | 11.5 | 10.9 | 10.6 | 10.7 | 11.2 | 11.9 | 12.7 | 13.4 | 13.7 |
| 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) | 11.8 | 9.7 | 10.4 | 10.4 | 9.1 | 9.6 | 9.4 | 10.3 | 10.9 | 10.0 | 10.9 | 10.9 |
| Precipitation (mm) | 57 | 151 | 17 | 12 | 51 | 5 | 3 | 0 | 17 | 84 | 32 | 95 |
| Sunny days | 16 | 8 | 15 | 24 | 16 | 27 | 27 | 30 | 27 | 22 | 17 | 10 |
| Rainy days | 15 | 20 | 16 | 6 | 15 | 3 | 4 | 1 | 3 | 9 | 13 | 21 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rietvalleirand is at