Heidelberg Weather in December
What's the weather like in Heidelberg (Gauteng) in December 2024?
The climate in Heidelberg during December can be summarized as warm and damp.
December is in the summer in Heidelberg and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a comfortable 27°C (80°F), whilst at night 14°C (57°F) is normal.
| Daytime temperature | 26.5°C 79.7°F |
|---|---|
| Nightly temperature | 13.9°C 57°F |
| Average temperature | 20.2°C 68.4°F |
| Daily sunshine | 9.3 hrs |
| Avg rainfall | 110 mm 4.3 ins |
| Rainy days | 13 days |
| Sea temperature | 23.7°C 74.6°F |
| Humidity | 64% |
| Windspeed | 10.1kph 6 mph |
On average December is the 3rd wettest month of the year in Heidelberg with around 110mm 4.3 inches of rain making it a damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.3 hours of sunshine per day.
December temperatures in Heidelberg
December rainfall
December hourly sunshine
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 Heidelberg in December 2024.
Other monthly averages
Best places to visit in December
Heidelberg weather stats
| Hottest month: | January | 26.6°C 79.9°F |
|---|---|---|
| Driest month: | July | 5mm 0.2ins |
| Sunniest month: | July | 9.9hrs |
| Coldest month: | June | 16.7°C 62.1°F |
| Wettest month: | January | 128mm 5ins |
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