Average weather in December in Sydney (New South Wales), Australia

The average minimum temperature (usually the minimum temperature is noted during the night) in Sydney in December is 18.3°C (64.94°F). The amount of rain in December is normal with an average of 72mm (2.8in). It rains on average a total of 11 days. The average maximum daytime temperature lies around 26.0°C (78.8°F). If you enjoy looking at a blue sky and love the sun than this is a great time to go to Sydney with 257 hours of sun.


So what to wear in December? Visitors traveling to Sydney should plan on bringing a totally waterproof rain jacket since it will often be raining. Also bring your shorts or a skirt because it can be very warm or even hot. With a water temperature of around 20.0°C (68°F), this is a great month to swim so bring your swimwear.

No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.

For other monthly average weather and what to do in December look at the numbers below.

Monthly Averages in December

Show in Celsius

Min Temperature 64 °F
Max Temperature 78 °F
Water Temperature 68 °F
Chance of Rain 37%
Precipitation 3 in
Rainy Days 11
Sunshine Hours 257

Where to stay in Sydney

What is the best place to go in December in Australia?

Find out more about the weather in December in Australia and which places have the best weather conditions in this month.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in December.

Swimming
9/10
Cycling
7/10
Walking
7/10
Camping
8/10
Outdoor sports
7/10

Weather Forecasts for Sydney (New South Wales)

FRI May 27
70°F | 56°F
Patchy rain possible

Patchy rain possible

SAT May 28
66°F | 56°F
Patchy rain possible

Patchy rain possible

SUN May 29
65°F | 54°F
Patchy rain possible

Patchy rain possible

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Sydney.

Our site offers climate and forecast data for almost all countries in the world. Are you going to Australia? On this website you can find historical weather averages for many cities in Australia. Not sure yet where to go? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.