Average annual temperature is 19.1 °C
Absolute maximum temperature: 40.6 °C
Absolute minimum temperature: -2.1 °C
Number of sunny days: 272 days
Number of rainy days: 93 days
Look at detailed online map of Koppies Dam
* Weather data for Koppies Dam 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) | 36.5 | 35.9 | 34.6 | 31.4 | 30.4 | 25.4 | 27.1 | 28.2 | 36.1 | 38.4 | 40.6 | 40.3 |
| Average daytime temperature (°C) | 32.8 | 30.0 | 30.1 | 26.6 | 21.6 | 17.8 | 18.9 | 23.1 | 25.5 | 30.2 | 33.5 | 33.9 |
| Average temperature (°C) | 25.8 | 23.5 | 22.5 | 18.4 | 14.2 | 10.5 | 10.9 | 14.6 | 16.7 | 21.8 | 25.5 | 25.7 |
| Average night temperature (°C) | 18.8 | 17.3 | 15.6 | 11.0 | 7.9 | 4.4 | 4.2 | 6.9 | 8.3 | 13.3 | 17.1 | 18.1 |
| Absolute minimum temperature (°C) | 11.1 | 12.6 | 9.2 | 6.1 | 1.3 | 0.6 | -2.1 | -0.2 | 1.0 | 8.1 | 8.4 | 14.5 |
| 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 | 13.0 |
| Daylight mean duration (h) | 13.7 | 13.1 | 12.3 | 11.4 | 10.7 | 10.3 | 10.5 | 11.1 | 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 | 11.5 | 10.8 | 10.4 | 9.1 | 9.2 | 9.0 | 10.0 | 10.3 | 11.0 | 11.7 | 11.7 |
| Precipitation (mm) | 30 | 24 | 39 | 16 | 38 | 10 | 2 | 0 | 10 | 47 | 9 | 75 |
| Sunny days | 21 | 16 | 18 | 23 | 20 | 26 | 27 | 30 | 26 | 25 | 23 | 17 |
| Rainy days | 10 | 12 | 13 | 7 | 11 | 4 | 4 | 1 | 4 | 6 | 7 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Koppies Dam is at