The climate in Welkom during May can be summarized as mild and dry.
May is in the fall / autumn in Welkom and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 21°C (70°F), whilst at night 5°C (41°F) is normal.
| Daytime temperature | 20.9°C 69.6°F |
|---|---|
| Nightly temperature | 4.9°C 40.8°F |
| Average temperature | 12.9°C 55.2°F |
| Daily sunshine | 9.1 hrs |
| Avg rainfall | 16 mm 0.6 ins |
| Rainy days | 3 days |
| Sea temperature | 21.5°C 70.8°F |
| Humidity | 58% |
| Windspeed | 7.6kph 5 mph |
On average May is the 4th driest month of the year in Welkom with around 16mm 0.6 inches of rain making it a dry time to visit. This rainfall is typically spread over 3 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.1 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Welkom in May 2025.
| Hottest month: | January | 29.7°C 85.5°F |
|---|---|---|
| Driest month: | July | 6mm 0.2ins |
| Sunniest month: | August | 10.5hrs |
| Coldest month: | June | 17.3°C 63.1°F |
| Wettest month: | January | 100mm 3.9ins |