Average annual temperature is 20.0 °C
Absolute maximum temperature: 38.8 °C
Absolute minimum temperature: -1.4 °C
Number of sunny days: 295 days
Number of rainy days: 70 days
Look at detailed online map of Bylfontein
* Weather data for Bylfontein 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) | 35.5 | 35.0 | 33.1 | 29.2 | 28.6 | 25.0 | 26.5 | 29.4 | 34.0 | 37.5 | 38.8 | 37.6 |
| Average daytime temperature (°C) | 32.3 | 30.6 | 29.6 | 26.7 | 22.8 | 19.4 | 20.0 | 23.6 | 26.5 | 31.1 | 33.6 | 33.5 |
| Average temperature (°C) | 26.2 | 24.3 | 23.0 | 18.8 | 15.5 | 11.4 | 12.1 | 15.2 | 18.0 | 23.2 | 26.2 | 26.5 |
| Average night temperature (°C) | 19.2 | 18.1 | 16.4 | 11.9 | 8.6 | 4.7 | 5.2 | 7.5 | 9.4 | 14.6 | 18.4 | 19.4 |
| Absolute minimum temperature (°C) | 13.1 | 12.8 | 11.1 | 6.4 | 3.2 | 0.8 | -1.4 | 2.7 | 2.9 | 8.3 | 9.8 | 14.8 |
| 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) | 12.5 | 11.6 | 10.9 | 10.4 | 9.6 | 9.3 | 9.5 | 10.3 | 10.8 | 11.5 | 11.8 | 12.0 |
| Precipitation (mm) | 10 | 20 | 19 | 8 | 35 | 5 | 2 | 0 | 9 | 18 | 19 | 90 |
| Sunny days | 22 | 16 | 17 | 26 | 25 | 27 | 30 | 31 | 28 | 27 | 24 | 22 |
| Rainy days | 9 | 12 | 14 | 4 | 6 | 3 | 1 | 0 | 2 | 4 | 6 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bylfontein is at