Average annual temperature is 19.3 °C
Absolute maximum temperature: 39.7 °C
Absolute minimum temperature: -2.9 °C
Number of sunny days: 277 days
Number of rainy days: 88 days
Look at detailed online map of Hartswater
* Weather data for Hartswater 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) | 35.7 | 35.3 | 32.3 | 29.1 | 29.4 | 24.8 | 26.1 | 29.6 | 33.9 | 37.3 | 39.7 | 38.3 |
| Average daytime temperature (°C) | 32.0 | 29.9 | 28.8 | 25.8 | 22.7 | 19.3 | 19.2 | 23.3 | 26.9 | 30.9 | 33.8 | 33.5 |
| Average temperature (°C) | 25.2 | 23.2 | 21.9 | 17.7 | 15.0 | 11.0 | 11.3 | 14.6 | 17.8 | 22.4 | 25.8 | 25.8 |
| Average night temperature (°C) | 18.3 | 17.2 | 15.4 | 10.7 | 8.3 | 4.3 | 4.7 | 6.6 | 9.3 | 13.6 | 17.6 | 18.7 |
| Absolute minimum temperature (°C) | 13.2 | 12.0 | 10.2 | 5.4 | 2.7 | 1.1 | -2.9 | -0.8 | 2.3 | 8.2 | 7.7 | 13.9 |
| 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) | 13.7 | 13.0 | 12.2 | 11.4 | 10.8 | 10.4 | 10.6 | 11.2 | 11.9 | 12.8 | 13.5 | 13.9 |
| 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) | 12.7 | 10.8 | 10.8 | 10.4 | 9.3 | 9.4 | 9.4 | 10.3 | 10.7 | 10.9 | 11.6 | 11.4 |
| Precipitation (mm) | 15 | 43 | 25 | 19 | 21 | 6 | 0 | 0 | 8 | 26 | 8 | 78 |
| Sunny days | 19 | 10 | 21 | 22 | 24 | 26 | 31 | 31 | 26 | 25 | 25 | 17 |
| Rainy days | 12 | 18 | 10 | 8 | 7 | 4 | 0 | 0 | 4 | 6 | 5 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Hartswater is at