Magnetic Island
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Magnetic Island, Australia

The ideal sea water temperature of 28.5°C (83.3°F) make December the best time for swimming and other water activities in Magnetic Island, Australia.

Sea temperature

In December, the average sea temperature is 28.5°C (83.3°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.


December has the longest days of the year, with an average of 13.3h of daylight.

What is the water temperature in December in Magnetic Island?

In Magnetic Island, in December, the average water temperature is 28.5°C (83.3°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

When are the longest days in Magnetic Island?

With an average of 13.3h of daylight, December has the longest days of the year in Magnetic Island, Australia.

How many hours of daylight does Magnetic Island have in December?

The average length of the day in December in Magnetic Island, Australia, is 13.3h.
Average sea temperature in December - Magnetic Island, Australia
  • Average sea temperature in December: 28.5°C

The best month for swimming (with the highest average sea temperature) is February (29.2°C).
Coldest months (with the lowest average sea temperature) are July and August (22.8°C).

Average daylight in December - Magnetic Island, Australia
  • Average daylight in December: 13.3h

The month with the longest days is December (Average daylight: 13.3h).
The month with shortest days is June (Average daylight: 11h).