Weather in December
Sea temperature
In West Perth, Australia, the average seawater temperature in December is 20.9°C (69.6°F).Note: For most, swimming in 20.9°C (69.6°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
Daylight
The month with the longest days in West Perth is December, with an average of 14h and 12min of daylight.On the first day of the month, sunrise is at 5:03 am and sunset at 7:08 pm. On the last day of December, sunrise is at 5:13 am and sunset at 7:25 pm AWST.
Frequently asked questions
How cold is the water in December in West Perth?
In West Perth, Australia, in December, the average water temperature is 20.9°C (69.6°F). For swimming, a surface water temperature of 20.9°C (69.6°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 West Perth?
With an average of 14h and 12min of daylight, December has the longest days of the year in West Perth, Australia.
How many hours of daylight does West Perth have in December?
In West Perth, the average day length in December is 14h and 12min.
What time are sunrise and sunset in December in West Perth?
On the first day of December, sunrise is at 5:03 am and sunset at 7:08 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 7:25 pm AWST.
Average sea temperature in December
West Perth, Australia
- Average sea temperature in December: 20.9°C
The best month for swimming (with the highest average sea temperature) is March (23.4°C).
The coldest months (with the lowest average sea temperature) are September and October (19°C).
Average daylight in December
West Perth, Australia
- Average daylight in December: 14h and 1min
The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).
West Perth, Australia
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