Average annual temperature is 19.1 °C
Absolute maximum temperature: 37.2 °C
Absolute minimum temperature: -2.9 °C
Number of sunny days: 288 days
Number of rainy days: 77 days
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* Weather data for Cassel 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) | 34.5 | 33.9 | 31.9 | 28.7 | 27.6 | 24.0 | 25.4 | 27.7 | 32.7 | 36.0 | 36.9 | 37.2 |
| Average daytime temperature (°C) | 31.1 | 29.0 | 28.2 | 25.3 | 22.0 | 18.9 | 18.8 | 22.7 | 25.9 | 30.0 | 32.6 | 32.3 |
| Average temperature (°C) | 24.9 | 22.9 | 21.6 | 17.9 | 14.8 | 11.1 | 11.5 | 14.5 | 17.5 | 22.1 | 25.2 | 25.3 |
| Average night temperature (°C) | 17.8 | 16.7 | 15.2 | 11.2 | 8.0 | 4.2 | 5.0 | 6.5 | 8.8 | 13.5 | 17.0 | 18.0 |
| Absolute minimum temperature (°C) | 12.7 | 11.8 | 10.7 | 5.8 | 2.4 | -0.3 | -2.9 | 1.3 | 1.6 | 8.1 | 7.6 | 12.2 |
| 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 | 11.4 | 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) | 12.6 | 10.8 | 11.0 | 10.4 | 9.4 | 9.4 | 9.7 | 10.3 | 10.8 | 11.3 | 11.6 | 11.9 |
| Precipitation (mm) | 8 | 46 | 7 | 8 | 25 | 5 | 0 | 0 | 0 | 9 | 16 | 89 |
| Sunny days | 22 | 14 | 21 | 23 | 26 | 26 | 30 | 31 | 28 | 26 | 21 | 20 |
| Rainy days | 9 | 14 | 10 | 7 | 5 | 4 | 1 | 0 | 2 | 5 | 9 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Cassel is at