Weather in Sydney, Australia in December

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Visiting Sydney, Australia in December

December is one of the best months to visit Sydney for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

The weather in December is marginally warmer than the previous month and temperatures continue to rise slightly into January. December has average maximum temperatures of 25°C (78°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 76.8% making it sunny and pleasant most of the time. The hours of sunshine per day are 11.1hrs making the days very long and bright.

December has total rainfall of 8.3cm (3.3inches) making it mostly dry with only intermittent light showers. There are only 14.6 days with some rainfall so you can still enjoy the beach on the majority of days.

Sea temperatures are a warm 22°C (71°F). December is a good month for swimming in Sydney with comfortable temperatures for most people. The sea temperature in December is warmer than the previous month and temperatures continue to rise slightly into January.

Also consider visiting Sydney in one of the other best months of January, February, March, for the best beach weather. Also consider one of our other suggestions for December.

Can you sunbathe in Sydney in December?

Yes, December is a good time for sunbathing in Sydney.

December has average maximum temperatures of 25°C (78°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 76.8% making it sunny and pleasant most of the time. The hours of sunshine per day are 11.1hrs making the days very long and bright. December has total rainfall of 8.3cm (3.3inches) making it mostly dry with only intermittent light showers. There are only 14.6 days with some rainfall so you can still enjoy the beach on the majority of days.

More about December temperature and sunshine.

Can you swim in Sydney in December?

Yes, December is a good month for swimming in Sydney with warm sea temperatures 22°C (71°F).

More about December sea temperatures.

Is December a good time to holiday in Sydney?

Yes, December is a good time for a holiday in Sydney.

December has average maximum temperatures of 25°C (78°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 76.8% making it sunny and pleasant most of the time. The hours of sunshine per day are 11.1hrs making the days very long and bright. December has total rainfall of 8.3cm (3.3inches) making it mostly dry with only intermittent light showers. There are only 14.6 days with some rainfall so you can still enjoy the beach on the majority of days. Sea temperatures are a warm 22°C (71°F). December is a good month for swimming in Sydney with comfortable temperatures for most people.

More about the December temperatures and sunshine.

Is Sydney warm in December?

Yes, Sydney is very warm and perfect for sunbathing on clear days in December.

The average maximum temperature in Sydney in December is 25°C (78°F). The average maximum temperature is 24°C (76°) in the previous month and 27°C (81°F) in the next month.

The average temperature in Sydney in December is 21°C (70°F). The average temperature is 20°C (68°F) in the previous month and 23°C (73°F) in the next month.

More info about the December temperatures and sunshine.

How sunny is Sydney in December?

The average day light hours per day in Sydney in December are 14.4. The sunshine percentage is 76.8% making it sunny and pleasant most of the time. The hours of sunshine per day are 11.1hrs making the days very long and bright.

More about December sunshine.

Temperature in Sydney in December

The weather in December is marginally warmer than the previous month and temperatures continue to rise slightly into January. The average maximum temperature in Sydney in December is 25°C (78°F). The average maximum temperature is 24°C (76°F) in the previous month and 27°C (81°F) in the next month.

The average temperature in Sydney in December is 21°C (70°F). The average temperature is 20°C (68°F) in the previous month and 23°C (73°F) in the next month.

The average minimum temperature in Sydney in December is 17°C (63°F). The minimum temperature is 16°C (61°F) in the previous month and 19°C (66°F) in the next month.

Sunshine in Sydney in December

The days in December are longer than the previous month. December has a slightly more hours of sunshine than the previous month. During December the average day light hours are 14.4 per day in Sydney. The sunshine percentage is 76.8% making it sunny and pleasant most of the time. The hours of sunshine per day are 11.1hrs making the days very long and bright.

The ultraviolet index in Sydney in December is typically 13.1 during December. An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Sydney in December

The average sea water temperature in Sydney in December is 21.8°C (71.2°F) which is comfortable for swimming though some may prefer warmer water. The sea temperature in December is warmer than the previous month and temperatures continue to rise slightly into January.

Rainfall in Sydney in December

December weather is slightly wetter than the previous month. December has a couple of less days of rain than the previous month and rainy days continue to drop into January. The average total rainfall in Sydney in December is 8.3cm (3.3inches) and on average there are 14.6 rainy days in December making it a pretty wet time to visit the beach.

Humidity in Sydney in December

The maximum dew point (an indicator of humidity) in Sydney in December is 17°C (63°F) which is OK for most but slightly uncomfortable for some. The dew point is 17°C (62°F) in the previous month and 19°C (19°F) in the next month.

The average maximum relative humidity in Sydney in December is typically 87.9%. The maximum relative humidity is 89.8% in the previous month and 88.9% in the next month.

The average relative humidity in Sydney in December is typically 67.4%. The average relative humidity is 68.6% in the previous month and 69.1% in the next month.

Wind Speed in Sydney in December

The average maximum wind speed in Sydney in December is typically 38KM/H (23MPH). The average maximum wind speed is 37KM/H (23MPH) in the previous month and 37KM/H (23MPH) in the next month.

The average wind speed in Sydney in December is typically 20KM/H (12MPH). The average wind speed is 20KM/H (12MPH) in the previous month and 20KM/H (12MPH) in the next month.

The average wind direction in Sydney in December is from the East-Southeast.

Monthly Averages

Suggested Beaches in December

Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.

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Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.