Average annual temperature is 16.8 °C
Absolute maximum temperature: 38.4 °C
Absolute minimum temperature: -1.8 °C
Number of sunny days: 262 days
Number of rainy days: 103 days
Look at detailed online map of Gariepdam
* Weather data for Gariepdam 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) | 35.8 | 34.0 | 32.6 | 28.1 | 25.6 | 22.5 | 23.4 | 25.1 | 32.4 | 34.0 | 38.4 | 37.5 |
| Average daytime temperature (°C) | 31.1 | 28.5 | 27.9 | 23.7 | 18.7 | 15.1 | 16.2 | 20.0 | 22.2 | 26.4 | 30.8 | 30.8 |
| Average temperature (°C) | 23.9 | 21.9 | 20.7 | 16.0 | 11.8 | 8.4 | 8.7 | 11.9 | 14.3 | 18.3 | 23.0 | 22.9 |
| Average night temperature (°C) | 17.0 | 16.0 | 14.5 | 9.2 | 6.4 | 3.0 | 2.4 | 4.4 | 6.5 | 10.7 | 14.7 | 15.7 |
| Absolute minimum temperature (°C) | 10.0 | 11.4 | 7.8 | 3.7 | 0.5 | -1.2 | -1.1 | -1.8 | -1.1 | 5.7 | 8.0 | 11.5 |
| 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 | 13.0 | 14.0 |
| Daylight mean duration (h) | 13.9 | 13.2 | 12.3 | 11.3 | 10.6 | 10.2 | 10.4 | 11.0 | 11.9 | 12.8 | 13.7 | 14.1 |
| 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) | 12.5 | 11.1 | 10.8 | 10.1 | 8.7 | 8.6 | 9.0 | 9.9 | 10.2 | 11.2 | 11.9 | 11.9 |
| Precipitation (mm) | 47 | 70 | 25 | 15 | 90 | 5 | 31 | 1 | 24 | 11 | 14 | 71 |
| Sunny days | 19 | 13 | 17 | 25 | 21 | 26 | 26 | 28 | 25 | 26 | 21 | 15 |
| Rainy days | 12 | 15 | 14 | 5 | 10 | 4 | 5 | 3 | 5 | 5 | 9 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Gariepdam is at