Average annual temperature is 18.2 °C
Absolute maximum temperature: 37.8 °C
Absolute minimum temperature: -2.9 °C
Number of sunny days: 276 days
Number of rainy days: 89 days
Look at detailed online map of Hartsrivier
* Weather data for Hartsrivier 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) | 32.9 | 30.3 | 31.0 | 28.4 | 27.9 | 24.0 | 24.4 | 28.3 | 32.2 | 35.3 | 37.8 | 37.0 |
| Average daytime temperature (°C) | 29.3 | 26.7 | 27.2 | 25.3 | 22.4 | 19.3 | 18.5 | 22.5 | 26.7 | 29.4 | 32.0 | 31.4 |
| Average temperature (°C) | 23.2 | 20.9 | 20.5 | 17.3 | 14.5 | 10.5 | 10.3 | 13.7 | 17.9 | 21.4 | 24.0 | 24.3 |
| Average night temperature (°C) | 16.6 | 15.6 | 14.3 | 9.7 | 7.6 | 3.1 | 3.1 | 5.2 | 9.1 | 12.9 | 16.1 | 17.4 |
| Absolute minimum temperature (°C) | 13.7 | 10.3 | 10.1 | 4.6 | 0.7 | -0.1 | -2.9 | -0.4 | 2.1 | 8.3 | 6.6 | 11.3 |
| 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) | 13.6 | 13.0 | 12.2 | 11.5 | 10.8 | 10.5 | 10.6 | 11.2 | 11.9 | 12.7 | 13.4 | 13.8 |
| 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) | 12.4 | 10.1 | 10.6 | 10.5 | 9.6 | 9.5 | 9.6 | 10.3 | 10.6 | 11.0 | 11.6 | 11.6 |
| Precipitation (mm) | 12 | 69 | 37 | 16 | 15 | 1 | 0 | 0 | 7 | 42 | 24 | 69 |
| Sunny days | 21 | 9 | 17 | 26 | 25 | 28 | 30 | 30 | 26 | 26 | 20 | 18 |
| Rainy days | 10 | 19 | 14 | 4 | 6 | 2 | 1 | 1 | 4 | 5 | 10 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Hartsrivier is at