Average annual temperature is 15.7 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: -3.6 °C
Number of sunny days: 239 days
Number of rainy days: 125 days
Number of snow days: 1 day
Look at detailed online map of Rietfontein
* Weather data for Rietfontein 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) | 36.1 | 32.9 | 31.2 | 28.8 | 24.9 | 20.9 | 22.2 | 24.5 | 31.3 | 32.1 | 37.5 | 35.2 |
| Average daytime temperature (°C) | 29.6 | 27.0 | 27.3 | 22.9 | 18.0 | 14.8 | 15.2 | 19.3 | 21.0 | 23.5 | 29.2 | 28.2 |
| Average temperature (°C) | 22.2 | 20.1 | 19.6 | 15.5 | 11.5 | 8.8 | 8.6 | 11.5 | 13.4 | 15.9 | 21.1 | 20.3 |
| Average night temperature (°C) | 15.1 | 13.9 | 12.6 | 8.3 | 6.0 | 3.7 | 3.0 | 4.6 | 5.7 | 8.6 | 12.4 | 13.7 |
| Absolute minimum temperature (°C) | 7.3 | 7.8 | 4.5 | 2.1 | -1.2 | -0.5 | -2.2 | -2.7 | -3.6 | 2.2 | 5.8 | 10.0 |
| 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) | 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 | 11.1 | 10.9 | 9.6 | 8.2 | 8.5 | 8.9 | 9.8 | 9.9 | 10.9 | 11.8 | 11.4 |
| Precipitation (mm) | 60 | 76 | 29 | 20 | 89 | 13 | 25 | 4 | 57 | 23 | 23 | 119 |
| Sunny days | 13 | 13 | 17 | 22 | 21 | 20 | 25 | 27 | 23 | 24 | 21 | 13 |
| Rainy days | 18 | 15 | 14 | 8 | 10 | 10 | 5 | 4 | 7 | 7 | 9 | 18 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rietfontein is at