Average annual temperature is 16.4 °C
Absolute maximum temperature: 38.5 °C
Absolute minimum temperature: -2.4 °C
Number of sunny days: 227 days
Number of rainy days: 138 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) | 36.5 | 33.9 | 32.5 | 29.1 | 25.8 | 21.7 | 22.8 | 25.2 | 31.8 | 33.3 | 38.5 | 36.7 |
| Average daytime temperature (°C) | 30.3 | 27.6 | 27.8 | 23.7 | 18.4 | 15.5 | 15.8 | 19.8 | 21.8 | 24.3 | 30.1 | 29.2 |
| Average temperature (°C) | 22.9 | 20.6 | 20.2 | 16.4 | 12.1 | 9.7 | 9.1 | 12.1 | 14.4 | 16.3 | 21.9 | 20.8 |
| Average night temperature (°C) | 15.6 | 14.5 | 13.2 | 9.6 | 6.7 | 4.8 | 3.4 | 4.9 | 6.8 | 8.7 | 13.1 | 13.5 |
| Absolute minimum temperature (°C) | 6.4 | 8.8 | 6.1 | 4.1 | 1.1 | 0.5 | -1.3 | -2.1 | -2.4 | 2.6 | 6.1 | 9.7 |
| 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 | 14.0 | 14.0 |
| Daylight mean duration (h) | 13.9 | 13.2 | 12.3 | 11.3 | 10.5 | 10.1 | 10.3 | 11.0 | 11.9 | 12.9 | 13.7 | 14.1 |
| 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 | 14.0 |
| Sunshine mean duration (h) | 11.5 | 11.0 | 10.8 | 9.6 | 8.1 | 8.7 | 8.8 | 9.8 | 10.1 | 10.8 | 11.7 | 11.2 |
| Precipitation (mm) | 72 | 104 | 25 | 8 | 71 | 5 | 23 | 1 | 32 | 30 | 20 | 79 |
| Sunny days | 12 | 11 | 17 | 24 | 19 | 23 | 24 | 25 | 23 | 18 | 20 | 11 |
| Rainy days | 19 | 17 | 14 | 6 | 12 | 7 | 7 | 6 | 7 | 13 | 10 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Welkom is at