Average annual temperature is 19.3 °C
Absolute maximum temperature: 40.1 °C
Absolute minimum temperature: -0.8 °C
Number of sunny days: 300 days
Number of rainy days: 65 days
Look at detailed online map of Grassmoor
* Weather data for Grassmoor 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) | 40.1 | 36.8 | 34.5 | 30.4 | 29.0 | 24.0 | 25.0 | 28.7 | 34.9 | 37.6 | 39.7 | 39.6 |
| Average daytime temperature (°C) | 35.1 | 33.0 | 29.6 | 25.5 | 20.9 | 16.5 | 17.7 | 21.5 | 22.0 | 28.4 | 32.9 | 32.4 |
| Average temperature (°C) | 28.4 | 26.1 | 22.9 | 18.4 | 13.9 | 10.2 | 10.8 | 14.4 | 14.8 | 21.2 | 25.7 | 25.7 |
| Average night temperature (°C) | 20.4 | 18.7 | 15.8 | 11.2 | 7.5 | 4.9 | 4.6 | 7.3 | 6.9 | 13.0 | 17.1 | 18.0 |
| Absolute minimum temperature (°C) | 12.0 | 12.3 | 9.5 | 6.0 | 2.1 | 0.9 | -0.8 | 0.6 | 0.0 | 6.6 | 10.6 | 12.5 |
| 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) | 13.8 | 13.1 | 12.3 | 11.4 | 10.6 | 10.3 | 10.4 | 11.1 | 11.9 | 12.8 | 13.6 | 14.0 |
| 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) | 12.8 | 12.1 | 10.7 | 10.1 | 9.2 | 8.0 | 9.0 | 10.1 | 10.5 | 11.4 | 12.3 | 12.1 |
| Precipitation (mm) | 6 | 4 | 42 | 11 | 24 | 17 | 2 | 1 | 27 | 12 | 5 | 68 |
| Sunny days | 26 | 21 | 21 | 29 | 24 | 23 | 25 | 28 | 25 | 28 | 25 | 25 |
| Rainy days | 5 | 7 | 10 | 1 | 7 | 7 | 6 | 3 | 5 | 3 | 5 | 6 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Grassmoor is at