Northern Beaches (Mona Vale)
December
Weather in Northern Beaches for December 2025
Your guide to Northern Beaches weather in December - trends and predictions
Until now, December 2025 in Northern Beaches is slightly cooler than the historical average by -0.9 °C.
The forecast for the next days in Northern Beaches predicts temperatures to be around 25 °C, close to the historical average.
In general, the average temperature in Northern Beaches at the beginning of December is 25.3 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 22.4 °C by the end of December.
The climate of Northern Beaches in December is notably wet, with an average of 13 rainy days, and a total of 64.5 mm of precipitation.
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Temperatures
Rain 🌧️
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18
Dry days
13
Rainy days
0
Snow days
25°/19°
Temperatures
25 km/h
Avg max wind
74 %
Avg humidity
Northern Beaches Weather December
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Temperatures trend during December in Northern Beaches
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December weather in Northern Beaches day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Patchy light drizzle | 24° /16° | 3.1 mm | 8 | |
| 2 Dec. |  Sunny | 24° /16° | 4.8 mm | 9 | |
| 3 Dec. |  Patchy rain possible | 24° /17° | 1 mm | 9 | |
| 4 Dec. | Patchy rain possible | 23° /17° | 0.4 mm | 9 | |
| 5 Dec. | Sunny | 27° /18° | 0 mm | 10 | |
| 6 Dec. | Sunny | 28° /20° | 0.5 mm | 10 | |
| 7 Dec. | Sunny | 27° /18° | 1.9 mm | 10 | |
| 8 Dec. | Patchy rain possible | 25° /18° | 0.4 mm | 8 | |
| 9 Dec. | Patchy rain possible | 28° /19° | 0.4 mm | 9 | |
| 10 Dec. | Patchy rain possible | 23° /19° | 2 mm | 8 | |
| 11 Dec. | Patchy rain possible | 22° /18° | 5.9 mm | 8 | |
| 12 Dec. | Patchy rain possible | 24° /18° | 5 mm | 9 | |
| 13 Dec. | Patchy rain possible | 25° /18° | 0.7 mm | 9 | |
| 14 Dec. |  Partly cloudy | 29° /19° | 0.7 mm | 10 | |
| 15 Dec. | Patchy rain possible | 23° /19° | 0.4 mm | 8 | |
| 16 Dec. | Patchy rain possible | 25° /18° | 0.5 mm | 9 | |
| 17 Dec. | Patchy rain possible | 27° /19° | 0.4 mm | 9 | |
| 18 Dec. | Sunny | 27° /19° | 0 mm | 3.6 | |
| 19 Dec. | Patchy rain possible | 33° /22° | 1.9 mm | 2.9 | |
| 20 Dec. | Patchy rain possible | 30° /21° | 0.4 mm | 3.1 | |
| 21 Dec. |  Moderate rain | 31° /21° | 15.3 mm | 2.6 | |
| 22 Dec. | Partly cloudy | 24° /20° | 0.1 mm | 9 | |
| 23 Dec. | Patchy rain possible | 23° /20° | 1.2 mm | 8 | |
| 24 Dec. | Patchy rain possible | 22° /18° | 0.7 mm | 7 | |
| 25 Dec. | Patchy rain possible | 22° /19° | 0.4 mm | 7 | |
| 26 Dec. | Patchy rain possible | 19° /17° | 0.6 mm | 7 | |
| 27 Dec. | Partly cloudy | 21° /17° | 0.1 mm | 8 | |
| 28 Dec. | Sunny | 23° /16° | 0 mm | 8 | |
| 29 Dec. | Sunny | 25° /18° | 0 mm | 9 | |
| 30 Dec. | Sunny | 25° /20° | 0 mm | 9 | |
| 31 Dec. | Patchy rain possible | 22° /19° | 0.6 mm | 8 | |
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Important Notice
Our weather forecast for Northern Beaches 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 Northern Beaches forecast closer to your planned date for the most up-to-date weather information.
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Northern Beaches in December - FAQ
What are the expected maximum and minimum temperatures in Northern Beaches during December?
During December, expect a variety of temperatures with highs around 25° and lows near 19°, suitable for diverse activities and preferences.
How much rainfall should be expected in Northern Beaches during December?
Moderate rainfall is anticipated in Northern Beaches during December, with a total of 64.5 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Northern Beaches during December?
The average wind speed in Northern Beaches during December is 25 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Northern Beaches
Explore the daily rainfall trends and prepare for Northern Beachess December weather 💧
Typically, Northern Beaches has 13 rainy days in December with a total of 64.5 mm of rainfall.
UV exposure in Northern Beaches during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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