Coffs Harbour

New South Wales Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in New South Wales, Australia in December.

Planning a trip to New South Wales, Australia this December? Here's what you need to know about the weather:

What to Expect in New South Wales in December

New South Wales, Australia is a region in Australia. New South Wales, Australia has a wide variety of climate types. During December, you can expect temperatures that range from pleasant to very hot and precipitation levels ranging from low to heavy.

Temperatures

During the day temperatures vary from pleasant in Eden at 21°C (70°F) to very hot in Bourke at 35°C (95°F). At night it cools down to 21°C (70°F) in Bourke and 15°C (59°F) in Eden.

For specific regional insights in New South Wales, Australia, refer to the map provided below.

Precipitation

In December, precipitation varies across different areas. From low rainfall in Broken Hill with an average of 23 mm (0.9 in) to heavy rainfall in Bellingen with 162 mm (6.4 in).

Average sunshine

Most destinations offer generous amounts of sunshine this December. For example, Sydney gets approximately 257 hours of sunlight, perfect for anyone wanting bright, sunny days.

Explore New South Wales by month

Pick a month to see the average temperature, rainfall and sunshine in New South Wales — and find the best time to visit. (based on Sydney)

Best Places to Visit in New South Wales in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across New South Wales.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in New South Wales

What is the weather like in December for some of the most popular destinations in New South Wales, Australia?

Temperature range in New South Wales (December)

Precipitation variation in New South Wales (December)

Sydney

In December Sydney generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 18°C (64°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

November
December
January
Max temperature
23°C (73°F)
24°C (75°F)
26°C (79°F)
Min temperature
16°C (61°F)
18°C (64°F)
20°C (68°F)
Monthly sun hours
243 hours
257 hours
233 hours
Monthly rainfall
77 mm (3 in)
63 mm (2.5 in)
81 mm (3.2 in)
Monthly rainy days
12 days
10 days
12 days
Weather conditions

Byron Bay

In December Byron Bay generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 21°C (70°F) and high monthly rainfall. So on average the conditions are pleasant that month.

November
December
January
Max temperature
25°C (77°F)
27°C (81°F)
28°C (82°F)
Min temperature
19°C (66°F)
21°C (70°F)
22°C (72°F)
Monthly sun hours
250 hours
250 hours
230 hours
Monthly rainfall
111 mm (4.4 in)
120 mm (4.7 in)
148 mm (5.8 in)
Monthly rainy days
11 days
12 days
13 days
Weather conditions

Jindabyne

In December Jindabyne generally has high temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 9°C (48°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

November
December
January
Max temperature
20°C (68°F)
22°C (72°F)
25°C (77°F)
Min temperature
7°C (45°F)
9°C (48°F)
11°C (52°F)
Monthly rainfall
97 mm (3.8 in)
89 mm (3.5 in)
88 mm (3.5 in)
Monthly rainy days
14 days
12 days
14 days
Weather conditions

The Entrance

In December The Entrance generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 18°C (64°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

November
December
January
Max temperature
23°C (73°F)
25°C (77°F)
26°C (79°F)
Min temperature
17°C (63°F)
18°C (64°F)
20°C (68°F)
Monthly rainfall
89 mm (3.5 in)
74 mm (2.9 in)
86 mm (3.4 in)
Monthly rainy days
12 days
10 days
12 days
Weather conditions

Merimbula

In December Merimbula generally has high temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 15°C (59°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

November
December
January
Max temperature
21°C (70°F)
22°C (72°F)
24°C (75°F)
Min temperature
13°C (55°F)
15°C (59°F)
17°C (63°F)
Monthly rainfall
94 mm (3.7 in)
89 mm (3.5 in)
74 mm (2.9 in)
Monthly rainy days
13 days
11 days
13 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in New South Wales, in Australia.

Popular cities in December

Day & night temperatures, rainfall and average weather in New South Wales in December.

City Weather Day temp Night temp Rainfall
Sydney 24°C (75°F) 18°C (64°F) 63 mm (2.5 in)
Byron Bay 27°C (81°F) 21°C (70°F) 120 mm (4.7 in)
Jindabyne 22°C (72°F) 9°C (48°F) 89 mm (3.5 in)
The Entrance 25°C (77°F) 18°C (64°F) 74 mm (2.9 in)
Merimbula 22°C (72°F) 15°C (59°F) 89 mm (3.5 in)
Coffs Harbour 26°C (79°F) 19°C (66°F) 135 mm (5.3 in)

New South Wales weather in December: frequently asked questions

What is the weather like in New South Wales, Australia in December?

Expect perfect weather across New South Wales, Australia in December. The popular destination of Sydney averages 24°C (75°F) by day and 18°C (64°F) at night during this month.

What is the average temperature in New South Wales, Australia in December?

Daytime temperatures in Sydney peak at roughly 24°C (75°F) in December, dropping to about 18°C (64°F) overnight.

Does New South Wales, Australia get a lot of rain in December?

Rain is generally moderate to light in New South Wales, Australia during December, with Sydney averaging close to 63 mm (2.5 in).

Is December a Good Time to Visit New South Wales, Australia?

We believe that December is one of the best times to visit New South Wales, Australia with overall perfect weather in Sydney.

On average, the best time to visit New South Wales, Australia is in January, March, April, May, September, October, November and December with generally perfect weather in Sydney.

Interested in more climate information?

We have much more information about the climate in New South Wales.

Weather and climate has detailed information for every country in the world. Are you going to Australia? Get detailed historical weather averages for many cities in Australia.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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Need travel inspiration? Check out our bucket list articles and be inspired.