Weather in Sydney, Australia in December

So you're interested in going to Sydney, Australia in December

December is a hot and slightly rainy time for sunbathing in Sydney. December is a good month for swimming in Sydney with warm sea temperatures. Consider visiting Sydney in the months of January, February, March, December, for the best beach weather. Also consider one of our other suggestions for December.

Temperature in Sydney in December

The average maximum temperature in Sydney in December is 25°. The average maximum temperature is 24° in the previous month and 27° in the next month.

The average temperature in Sydney in December is 21°. The average temperature ranges is 20° in the previous month and 23° in the next month.

The average minimum temperature in Sydney in December is 17°. The minimum temperature is 16° in the previous month and 19° in the next month.

Sunshine in Sydney in December

The average day light hours per day in Sydney in December are 14.4 and there are 11.1 hours of sunshine per day on average during December making it a very sunny and pleasant month with long bright days.

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° which is comfortable for swimming though some may prefer warmer water.

Rainfall in Sydney in December

The average total rainfall in Sydney in December is 8.3cm and on average there are 14.6 rainy days in December making it a slightly 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° which is OK for most but slightly uncomfortable for some. The dew point is 17° in the previous month and 19° 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 38kmh. The average maximum wind speed is 37kmh in the previous month and 37kmh in the next month.

The average wind speed in Sydney in December is typically 20kmh. The average wind speed is 20kmh in the previous month and 20kmh in the next month.

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

Monthly Averages

Suggested Beaches in December

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