Weather in December
Sea temperature
In December, the average sea temperature in Port Phillip, Australia, is 17.5°C (63.5°F).Note: Swimming in water of 17.5°C (63.5°F) is not enjoyable for the majority of individuals. Breathing control becomes increasingly challenging as the temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
With an average of 14h and 42min of daylight, December has the longest days of the year.On the first day of December, sunrise is at 5:51 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:45 pm AEDT.
Frequently asked questions
What is the sea temperature in December in Port Phillip?
In December, the average sea temperature is 17.5°C (63.5°F). For swimming, a surface water temperature of 17.5°C (63.5°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).
When are the longest days in Port Phillip?
With an average of 14h and 42min of daylight, December has the longest days of the year in Port Phillip.
What is the average length of the day in December in Port Phillip?
The average day length in December in Port Phillip, Australia, is 14h and 44min.
When are sunrise and sunset in December in Port Phillip?
On the first day of December in Port Phillip, sunrise is at 5:51 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:45 pm AEDT.
Average sea temperature in December
Port Phillip, Australia
- Average sea temperature in December: 17.5°C
The best month for swimming (with the highest average sea temperature) is February (18.8°C).
The coldest month (with the lowest average sea temperature) is September (14.7°C).
Average daylight in December
Port Phillip, Australia
- Average daylight in December: 14h and 4min
The month with the longest days is December (Average daylight: 14h and 42min).
The month with the shortest days is June (Average daylight: 9h and 36min).
Port Phillip, Australia
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