Average annual temperature is 21.0 °C
Absolute maximum temperature: 38.2 °C
Absolute minimum temperature: 3.5 °C
Number of sunny days: 255 days
Number of rainy days: 110 days
Look at detailed online map of Welkom
* Weather data for Welkom 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) | 35.7 | 32.8 | 35.4 | 32.1 | 30.3 | 29.9 | 27.6 | 34.5 | 36.9 | 37.6 | 38.0 | 38.2 |
| Average daytime temperature (°C) | 31.3 | 29.0 | 30.7 | 28.7 | 25.0 | 24.3 | 21.6 | 25.5 | 30.9 | 31.3 | 32.2 | 30.4 |
| Average temperature (°C) | 24.6 | 23.0 | 24.1 | 21.3 | 18.0 | 16.1 | 14.1 | 17.4 | 22.6 | 23.0 | 24.5 | 24.0 |
| Average night temperature (°C) | 18.1 | 18.2 | 17.5 | 14.2 | 12.2 | 9.1 | 7.3 | 9.8 | 14.6 | 15.5 | 17.5 | 18.1 |
| Absolute minimum temperature (°C) | 14.5 | 15.5 | 13.9 | 10.9 | 7.8 | 6.0 | 3.5 | 4.8 | 11.0 | 9.7 | 9.2 | 14.7 |
| 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) | 13.4 | 12.9 | 12.2 | 11.5 | 10.9 | 10.6 | 10.8 | 11.3 | 12.0 | 12.7 | 13.3 | 13.6 |
| 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) | 11.7 | 10.4 | 10.9 | 10.4 | 9.4 | 9.7 | 9.6 | 10.2 | 10.9 | 10.5 | 11.2 | 10.6 |
| Precipitation (mm) | 91 | 116 | 32 | 7 | 67 | 0 | 5 | 0 | 15 | 35 | 35 | 124 |
| Sunny days | 21 | 5 | 19 | 25 | 20 | 26 | 28 | 31 | 26 | 22 | 18 | 14 |
| Rainy days | 10 | 23 | 12 | 5 | 11 | 4 | 3 | 0 | 4 | 9 | 12 | 17 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Welkom is at