The climate in Germiston during December can be summarized as warm and damp.
December is in the summer in Germiston and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a comfortable 26°C (79°F), whilst at night 14°C (58°F) is normal.
Daytime temperature | 26.2°C 79.1°F |
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Nightly temperature | 14.3°C 57.7°F |
Average temperature | 20.2°C 68.4°F |
Daily sunshine | 9.2 hrs |
Avg rainfall | 107 mm 4.2 ins |
Rainy days | 14 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 Germiston with around 107mm 4.2 inches of rain making it a damp time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.2 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 Germiston in December 2024.
Best places to visit in December
Hottest month: | January | 26.4°C 79.5°F |
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Driest month: | July | 5mm 0.2ins |
Sunniest month: | July | 9.9hrs |
Coldest month: | June | 16.7°C 62.1°F |
Wettest month: | January | 123mm 4.8ins |