New South Wales (Sydney)
December
Weather in New South Wales for December 2025
Your guide to New South Wales weather in December - trends and predictions
In general, the average temperature in New South Wales at the beginning of December is 23.4 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 23.9 °C by the end of December.
New South Wales experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 79.2 mm.
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Temperatures
Rain 🌧️
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7
Dry days
24
Rainy days
0
Snow days
23°/18°
Temperatures
24 km/h
Avg max wind
73 %
Avg humidity
New South Wales in December average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2  24° | 3 24° | 4 21° | 5  23° | 6 23° | 7  26° |
| 8 23° | 9 23° | 10 23° | 11 22° | 12 24° | 13 24° | 14 25° |
| 15 24° | 16 24° | 17 24° | 18 25° | 19 24° | 20 22° | 21 24° |
| 22 23° | 23 23° | 24 23° | 25 24° | 26 24° | 27  26° | 28 24° |
| 29 23° | 30 23° | 31 23° |
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Temperatures trend during December in New South Wales
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. | Patchy rain possible | 23° /17° | 3.7 mm | 8 | |
| 2 Dec. | Partly cloudy | 24° /17° | 2.7 mm | 8 | |
| 3 Dec. | Patchy rain possible | 24° /17° | 1.6 mm | 8 | |
| 4 Dec. | Patchy rain possible | 21° /17° | 0.4 mm | 7 | |
| 5 Dec. | Sunny | 23° /17° | 0.1 mm | 8 | |
| 6 Dec. | Patchy rain possible | 23° /18° | 0.8 mm | 8 | |
| 7 Dec. | Moderate rain at times | 26° /18° | 1.9 mm | 8 | |
| 8 Dec. | Patchy rain possible | 23° /17° | 0.3 mm | 8 | |
| 9 Dec. | Patchy rain possible | 23° /17° | 2.3 mm | 8 | |
| 10 Dec. | Patchy rain possible | 23° /17° | 3.3 mm | 8 | |
| 11 Dec. | Patchy rain possible | 22° /16° | 0.4 mm | 7 | |
| 12 Dec. | Patchy rain possible | 24° /17° | 0.5 mm | 8 | |
| 13 Dec. | Patchy rain possible | 24° /16° | 0.1 mm | 9 | |
| 14 Dec. | Sunny | 25° /18° | 1.2 mm | 8 | |
| 15 Dec. | Partly cloudy | 24° /17° | 2.1 mm | 8 | |
| 16 Dec. | Patchy rain possible | 24° /18° | 4.3 mm | 8 | |
| 17 Dec. | Patchy rain possible | 24° /18° | 3.7 mm | 8 | |
| 18 Dec. | Patchy rain possible | 25° /18° | 2.9 mm | 8 | |
| 19 Dec. | Partly cloudy | 24° /19° | 1.1 mm | 9 | |
| 20 Dec. | Patchy rain possible | 22° /17° | 5.2 mm | 7 | |
| 21 Dec. | Partly cloudy | 24° /16° | 5.6 mm | 8 | |
| 22 Dec. | Moderate rain at times | 23° /17° | 2.7 mm | 7 | |
| 23 Dec. | Sunny | 23° /17° | 1.5 mm | 7 | |
| 24 Dec. | Patchy rain possible | 23° /17° | 2.3 mm | 7 | |
| 25 Dec. | Patchy rain possible | 24° /18° | 3 mm | 7 | |
| 26 Dec. | Sunny | 24° /18° | 4.2 mm | 8 | |
| 27 Dec. | Cloudy | 26° /18° | 3 mm | 8 | |
| 28 Dec. | Partly cloudy | 24° /17° | 1.5 mm | 8 | |
| 29 Dec. | Patchy rain possible | 23° /18° | 1.5 mm | 7 | |
| 30 Dec. | Patchy rain possible | 23° /18° | 3.4 mm | 7 | |
| 31 Dec. | Patchy rain possible | 23° /18° | 1 mm | 7 | |
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Important Notice
Our weather forecast for New South Wales in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the New South Wales forecast closer to your planned date for the most up-to-date weather information.
New South Wales in December - FAQ
What are the expected maximum and minimum temperatures in New South Wales during December?
During December, expect a variety of temperatures with highs around 23° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in New South Wales during December?
Moderate rainfall is anticipated in New South Wales during December, with a total of 79.2 mm spread over approximately 24 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in New South Wales during December?
The average wind speed in New South Wales during December is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in New South Wales
Explore the daily rainfall trends and prepare for New South Waless December weather 💧
UV exposure in New South Wales during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
Provinces in New South Wales
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Armidale RegionalBathurst RegionalBroken Hill MunicipalityCampbelltown MunicipalityCessnockCity of SydneyClarence ValleyCoffs HarbourFairfieldGoulburn MulwareeGriffithHilltopsHornsby ShireInverellKu-ring-gaiLismore MunicipalityMaitland MunicipalityMid-CoastMid-Western RegionalMuswellbrookNewcastleNorthern BeachesOrange MunicipalityParkesParramattaPort Macquarie-HastingsRichmond ValleySnowy Monaro RegionalTamworth MunicipalityWestern Plains RegionalWingecarribeeWollongong
Top locations in New South Wales
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Where is New South Wales?Get accurate weather forecasts for New South Wales, located at latitude -33.868 and longitude 151.207. Stay updated with localized weather information tailored for New South Wales.
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