Average annual temperature is 16.6 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: -2.6 °C
Number of sunny days: 244 days
Number of rainy days: 121 days
Look at detailed online map of Jonasfontein
* Weather data for Jonasfontein 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) | 35.2 | 32.8 | 29.3 | 27.9 | 25.0 | 21.4 | 23.7 | 24.1 | 31.4 | 34.7 | 37.9 | 37.3 |
| Average daytime temperature (°C) | 30.2 | 27.1 | 26.6 | 23.6 | 18.9 | 15.4 | 16.5 | 20.0 | 23.4 | 26.9 | 30.3 | 29.5 |
| Average temperature (°C) | 23.2 | 20.8 | 19.6 | 15.9 | 11.9 | 8.3 | 8.7 | 11.9 | 15.3 | 18.9 | 22.7 | 22.0 |
| Average night temperature (°C) | 16.6 | 15.2 | 13.4 | 8.8 | 6.0 | 2.4 | 2.1 | 4.2 | 7.3 | 10.9 | 14.6 | 15.5 |
| Absolute minimum temperature (°C) | 9.2 | 10.3 | 7.9 | 3.9 | -0.6 | -0.9 | -2.6 | -2.2 | 0.3 | 5.7 | 6.2 | 11.3 |
| 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) | 12.2 | 10.4 | 10.5 | 10.2 | 8.9 | 8.9 | 8.9 | 9.9 | 10.1 | 10.8 | 11.6 | 11.4 |
| Precipitation (mm) | 78 | 93 | 31 | 39 | 48 | 9 | 6 | 0 | 27 | 29 | 10 | 103 |
| Sunny days | 16 | 8 | 15 | 23 | 21 | 25 | 25 | 28 | 25 | 22 | 23 | 13 |
| Rainy days | 15 | 20 | 16 | 7 | 10 | 5 | 6 | 3 | 5 | 9 | 7 | 18 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Jonasfontein is at