Average annual temperature is 20.1 °C
Absolute maximum temperature: 38.6 °C
Absolute minimum temperature: 0.6 °C
Number of sunny days: 264 days
Number of rainy days: 101 days
Look at detailed online map of Swartbooistad
* Weather data for Swartbooistad 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) | 36.9 | 32.9 | 34.2 | 31.3 | 30.2 | 26.6 | 27.4 | 32.0 | 34.7 | 37.9 | 38.6 | 37.6 |
| Average daytime temperature (°C) | 31.0 | 28.0 | 30.1 | 27.5 | 23.6 | 21.9 | 20.8 | 25.0 | 30.4 | 31.1 | 32.1 | 31.1 |
| Average temperature (°C) | 24.7 | 22.5 | 23.4 | 19.7 | 16.4 | 13.1 | 12.4 | 16.2 | 21.6 | 22.7 | 24.6 | 24.5 |
| Average night temperature (°C) | 18.5 | 17.9 | 17.1 | 12.6 | 10.5 | 5.8 | 5.2 | 8.0 | 12.8 | 14.9 | 17.6 | 18.4 |
| Absolute minimum temperature (°C) | 15.4 | 15.0 | 12.3 | 8.8 | 4.5 | 2.6 | 0.6 | 3.8 | 8.6 | 9.0 | 8.5 | 14.3 |
| 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) | 13.5 | 12.9 | 12.2 | 11.5 | 10.9 | 10.6 | 10.7 | 11.3 | 11.9 | 12.7 | 13.3 | 13.7 |
| 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) | 11.9 | 10.1 | 10.7 | 10.3 | 9.6 | 9.7 | 9.6 | 10.3 | 10.9 | 10.2 | 11.2 | 10.9 |
| Precipitation (mm) | 38 | 120 | 17 | 6 | 53 | 5 | 10 | 0 | 15 | 66 | 39 | 90 |
| Sunny days | 21 | 9 | 19 | 26 | 20 | 27 | 28 | 31 | 27 | 23 | 19 | 14 |
| Rainy days | 10 | 19 | 12 | 4 | 11 | 3 | 3 | 0 | 3 | 8 | 11 | 17 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Swartbooistad is at