South Melbourne Weather in December
What's the weather like in South Melbourne (Victoria) in December 2025?
The climate in South Melbourne during December can be summarized as warm and reasonably dry.
December is in the summer in South Melbourne and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 24°C (75°F), whilst at night 12°C (54°F) is normal.
| Daytime temperature | 23.9°C 75°F |
|---|---|
| Nightly temperature | 12.3°C 54.1°F |
| Average temperature | 18.1°C 64.6°F |
| Daily sunshine | 8.3 hrs |
| Avg rainfall | 56 mm 2.2 ins |
| Rainy days | 9 days |
| Sea temperature | 16.7°C 62.1°F |
| Humidity | 53% |
| Windspeed | 16.6kph 10 mph |
On average December is the 4th wettest month of the year in South Melbourne with around 56mm 2.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.3 hours of sunshine per day.
December temperatures in South Melbourne
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 South Melbourne in December 2025.
Other monthly averages
Best places to visit in December
South Melbourne weather stats
| Hottest month: | February | 25.7°C 78.3°F |
|---|---|---|
| Driest month: | June | 40mm 1.6ins |
| Sunniest month: | February | 8.6hrs |
| Coldest month: | July | 12.7°C 54.9°F |
| Wettest month: | May | 64mm 2.5ins |
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