Average annual temperature is 21.4 °C
Absolute maximum temperature: 42.0 °C
Absolute minimum temperature: 0.3 °C
Number of sunny days: 306 days
Number of rainy days: 59 days
Look at detailed online map of Gariep
* Weather data for Gariep 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) | 40.9 | 38.9 | 37.5 | 33.4 | 31.0 | 26.2 | 28.7 | 31.5 | 36.5 | 40.2 | 42.0 | 41.6 |
| Average daytime temperature (°C) | 36.6 | 34.8 | 32.6 | 28.3 | 23.5 | 19.2 | 20.7 | 24.3 | 25.1 | 31.3 | 35.3 | 35.0 |
| Average temperature (°C) | 30.0 | 27.9 | 25.4 | 20.6 | 15.9 | 11.8 | 12.8 | 16.1 | 17.1 | 23.8 | 27.7 | 28.0 |
| Average night temperature (°C) | 22.0 | 20.2 | 17.5 | 12.5 | 8.6 | 5.2 | 5.4 | 8.3 | 8.2 | 15.1 | 18.5 | 20.0 |
| Absolute minimum temperature (°C) | 15.5 | 14.9 | 11.9 | 7.3 | 0.9 | 2.0 | 0.3 | 1.9 | 2.4 | 8.8 | 12.4 | 15.7 |
| 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 | 13.1 | 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) | 12.6 | 11.9 | 10.8 | 10.1 | 9.3 | 8.6 | 9.2 | 10.1 | 10.5 | 11.3 | 12.3 | 12.3 |
| Precipitation (mm) | 7 | 6 | 10 | 3 | 7 | 3 | 1 | 1 | 4 | 18 | 3 | 34 |
| Sunny days | 23 | 23 | 25 | 28 | 23 | 27 | 27 | 29 | 26 | 28 | 25 | 22 |
| Rainy days | 8 | 5 | 6 | 2 | 8 | 3 | 4 | 2 | 4 | 3 | 5 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Gariep is at