Average annual temperature is 15.0 °C
Absolute maximum temperature: 34.9 °C
Absolute minimum temperature: -4.6 °C
Number of sunny days: 225 days
Number of rainy days: 140 days
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) | 31.5 | 29.8 | 27.9 | 25.3 | 24.0 | 20.7 | 21.5 | 23.7 | 29.7 | 32.2 | 34.9 | 32.9 |
| Average daytime temperature (°C) | 27.1 | 24.3 | 24.8 | 22.3 | 18.0 | 14.7 | 15.5 | 18.8 | 22.5 | 25.0 | 28.0 | 26.7 |
| Average temperature (°C) | 20.4 | 18.5 | 17.8 | 14.7 | 11.0 | 7.7 | 7.7 | 10.7 | 14.4 | 17.2 | 20.5 | 20.0 |
| Average night temperature (°C) | 14.3 | 13.4 | 11.7 | 7.6 | 5.2 | 1.6 | 1.1 | 2.9 | 6.3 | 9.7 | 12.9 | 14.3 |
| Absolute minimum temperature (°C) | 8.7 | 8.6 | 5.0 | 2.9 | -1.6 | -2.2 | -4.6 | -2.9 | -0.6 | 4.4 | 3.0 | 9.5 |
| 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 | 14.0 |
| Daylight mean duration (h) | 13.8 | 13.1 | 12.3 | 11.4 | 10.7 | 10.3 | 10.5 | 11.1 | 11.9 | 12.8 | 13.6 | 14.0 |
| 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 | 13.0 |
| Sunshine mean duration (h) | 12.1 | 10.0 | 10.5 | 10.1 | 9.1 | 8.8 | 9.1 | 10.0 | 10.1 | 10.8 | 11.8 | 11.3 |
| Precipitation (mm) | 103 | 122 | 54 | 14 | 57 | 2 | 20 | 1 | 20 | 82 | 26 | 140 |
| Sunny days | 12 | 7 | 9 | 22 | 19 | 25 | 26 | 29 | 25 | 20 | 21 | 10 |
| Rainy days | 19 | 21 | 22 | 8 | 12 | 5 | 5 | 2 | 5 | 11 | 9 | 21 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rietfontein is at