New South Wales - Australia weather in December 2025
December
New South Wales - Australia weather in December 2025
December
Day
26 °C
Night
18 °C
Sea
22 °C
Precipitation
107 mm
in month
Rainy days
11 days
in month
Daylight
14 hours
average
Sunshine
8 hours
average
Humidity
64 %
Day
26 °C
Night
18 °C
Sea
22 °C
Precipitation
107 mm
in month
Rainy days
11 days
in month
Daylight
14 hours
average
Sunshine
8 hours
average
Humidity
64 %
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Weather overview and FAQs
Weather overview
In December in New South Wales, the average air temperature ranges from 26 °C (79 °F) during the day to 18 °C (64 °F) at night. There are 11 days of rain on average, where the rainfall is 107 mm (4.22 in).
Are there good conditions to visit in December in New South Wales?
There are good conditions for visiting in New South Wales in December. The temperature during the day will be nice 26 °C (79 °F). The seawater temperature reaches ideal 22 °C (72 °F). The temperature of 18 °C (64 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
What is the temperature in New South Wales during the day in December?
In New South Wales in December, the average daily temperatures will be 26 °C (79 °F). The ideal temperature for enjoying sunbathing by the water and a good temperature for other activities. For some people, it will be too hot in the direct sunlight and the stay may not be so pleasant. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.
What is the sea temperature in New South Wales in December?
The sea will reach 22 °C (72 °F) in New South Wales in December. This warm sea is nice for swimming, maybe cold for some, but most people can spend a long time in it.
How heavy is the precipitation in December in New South Wales?
There is precipitation of 107 mm (4.22 in) in New South Wales in December, which means 4 mm (0.14 in) rainfall per day on average.
How many days of precipitation on average can I expect in New South Wales in December?
There are 11 days, which are rainy in December in New South Wales, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.6 days of the week, or in general - 37 % days.
What is the night temperature in December in New South Wales?
The average night temperature in New South Wales in December is 18 °C (64 °F). This temperature is pleasant for a wide range of evening, night, and morning activities from sports to sitting outside in restaurants or evening walks.
Is December part of the wet season in New South Wales?
No, there is no wet season in New South Wales in December - you can expect 11 days of rain during the month.
Is it hot in December in New South Wales?
In December in New South Wales, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
How many hours of sun to expect in December in New South Wales?
There is an average length of sunshine of 8 hours per day in New South Wales in December.
Is the weather in New South Wales warmer in December than in January?
No, in December in New South Wales the temperature is not higher than in January.
How long is the day (from dawn till dusk) in New South Wales in December?
The length of daylight in New South Wales in December is 14 hours.
What level of humidity is to expect in December in New South Wales?
Humidity in New South Wales in December is 64 %.
Is the sea in New South Wales warmer in December than in November?
Yes, in December in New South Wales the sea temperature is higher by 1 °C (35 °F) compared to November.
How windy is New South Wales in December?
In New South Wales in December, there will be an average wind scale of 5.
Is New South Wales rainier in December than in January?
No, December in New South Wales is not a rainier month than January.
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