December weather forecastEast Perth, Australia
December
Weather in December
Sea temperature
In East Perth, Australia, in December, the average water temperature is 20.9°C (69.6°F).Note: The majority of people do not enjoy swimming in 20.9°C (69.6°F). The difficulty in controlling breathing escalates as the temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
With an average of 14h and 12min of daylight, December has the longest days of the year.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, in East Perth, sunrise is at 5:13 am and sunset at 7:25 pm AWST.
Updated: Jan 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In December, the average sea temperature in East Perth, Australia, 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).
December has the longest days of the year in East Perth, with an average of 14h and 12min of daylight.
In East Perth, Australia, the average day length in December is 14h and 12min.
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
East 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
East Perth, Australia
- Average daylight in December: 14h and 12min
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).





