Rockdale Weather in December

December in Rockdale averages 25°C (77°F) during the day and 18°C (64°F) at night. Quite a bit of rainfall is typical this month, with around 63 mm (2.5 in) on average. An umbrella is a good idea.

Rainfall in Rockdale in December

Typically, about 10 days will experience rainfall, with an average of 63 mm (2.5 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Rockdale in December

Rockdale in December has perfect weather. Days reach 25°C (77°F) and nights cool to 18°C (64°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 18°C (64°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Rockdale in December

Enjoy a sunny month with about 257 hours of sunshine, the clear skies make Rockdale even more beautiful.

Wind Speed in Rockdale in December

In December, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

Average water temperature in December

The water sits at 20°C (68°F), which is a nice temperature for swimming. Not too cold, not too warm — most visitors are happy to spend time in the water.

If you favor pleasant temperatures and minimal rainfall, December is one of the best months to visit Rockdale.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Australia, check out our Rockdale's climate page.

Rockdale Temperature in December

Min Temperature 18°C (64°F)  

Max Temperature 25°C (77°F)  

Water Temperature 20°C (68°F) *  

Chance of Rain 33%  

Precipitation 63 mm (2.5 in)  

Rainy days 10 days  

Humidity 58% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 257 hours *  

Percentage Sunshine 55% *  

* Data from: Sydney, Australia (4 KM, 2 Miles).

What to Wear in Rockdale in December

Comfortable temperatures call for an easy wardrobe in December. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Expect water temperatures of around 20°C (68°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Rockdale in December

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

Swimming

9/10

Cycling

10/10

Walking

10/10

Camping

8/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Australia, check out our Rockdale's climate page.

More climate data for Rockdale

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Rockdale climate overview or explore weather in Australia.