Hornsby
December
Weather in Hornsby for December 2025
Your guide to Hornsby weather in December - trends and predictions
In general, the average temperature in Hornsby at the beginning of December is 27.4 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 27.6 °C by the end of December.
The climate of Hornsby in December is notably wet, with an average of 15 rainy days, and a total of 93.6 mm of precipitation.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
16
Dry days
15
Rainy days
0
Snow days
27°/18°
Temperatures
21 km/h
Avg max wind
71 %
Avg humidity
Hornsby in December average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  27° | 2 28° | 3 27° | 4 23° | 5  28° | 6 28° | 7 31° |
| 8 30° | 9  31° | 10 27° | 11 25° | 12 29° | 13 30° | 14 33° |
| 15 27° | 16 32° | 17 30° | 18 26° | 19  29° | 20 23° | 21 24° |
| 22 25° | 23 26° | 24 22° | 25 27° | 26  28° | 27  33° | 28 29° |
| 29 27° | 30 26° | 31 23° |
You can click on date
Access Hornsby weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during December in Hornsby
See the weather trend as well as the moving average line
December weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. | Patchy rain possible | 27° /17° | 3.5 mm | 9 | |
| 2 Dec. | Light rain shower | 28° /18° | 6 mm | 10 | |
| 3 Dec. | Patchy rain possible | 27° /19° | 1.8 mm | 9 | |
| 4 Dec. | Patchy rain possible | 23° /18° | 0.3 mm | 8 | |
| 5 Dec. | Sunny | 28° /17° | 0 mm | 11 | |
| 6 Dec. | Sunny | 28° /19° | 1.4 mm | 10 | |
| 7 Dec. | Sunny | 31° /19° | 1.2 mm | 10 | |
| 8 Dec. | Patchy rain possible | 30° /18° | 0.4 mm | 10 | |
| 9 Dec. | Partly cloudy | 31° /19° | 0.4 mm | 10 | |
| 10 Dec. | Patchy rain possible | 27° /19° | 0.4 mm | 10 | |
| 11 Dec. | Patchy rain possible | 25° /19° | 0.7 mm | 9 | |
| 12 Dec. | Patchy rain possible | 29° /18° | 0 mm | 10 | |
| 13 Dec. | Patchy rain possible | 30° /18° | 0.1 mm | 10 | |
| 14 Dec. | Sunny | 33° /21° | 0 mm | 11 | |
| 15 Dec. | Partly cloudy | 27° /20° | 0 mm | 10 | |
| 16 Dec. | Partly cloudy | 32° /19° | 0 mm | 10 | |
| 17 Dec. | Patchy rain possible | 30° /19° | 0.7 mm | 9 | |
| 18 Dec. | Patchy rain possible | 26° /19° | 0.8 mm | 9 | |
| 19 Dec. | Moderate rain at times | 29° /19° | 3.3 mm | 10 | |
| 20 Dec. | Light rain shower | 23° /15° | 11 mm | 9 | |
| 21 Dec. | Light rain shower | 24° /15° | 3.2 mm | 9 | |
| 22 Dec. | Patchy rain possible | 25° /17° | 0.1 mm | 9 | |
| 23 Dec. | Patchy rain possible | 26° /17° | 0.1 mm | 9 | |
| 24 Dec. | Light rain shower | 22° /15° | 5.3 mm | 9 | |
| 25 Dec. | Light rain shower | 27° /16° | 8.9 mm | 10 | |
| 26 Dec. | Patchy light rain with thunder | 28° /17° | 4.3 mm | 10 | |
| 27 Dec. | Patchy light drizzle | 33° /18° | 0.6 mm | 10 | |
| 28 Dec. | Partly cloudy | 29° /17° | 0 mm | 10 | |
| 29 Dec. | Patchy light drizzle | 27° /17° | 0.8 mm | 9 | |
| 30 Dec. | Patchy rain possible | 26° /18° | 1.3 mm | 9 | |
| 31 Dec. | Patchy rain possible | 23° /18° | 0.5 mm | 8 | |
| Next | |||||
Important Notice
Our weather forecast for Hornsby 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 Hornsby forecast closer to your planned date for the most up-to-date weather information.
Hornsby in December - FAQ
What are the expected maximum and minimum temperatures in Hornsby during December?
During December, expect a variety of temperatures with highs around 27° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hornsby during December?
Moderate rainfall is anticipated in Hornsby during December, with a total of 93.6 mm spread over approximately 15 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Hornsby during December?
The average wind speed in Hornsby during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Hornsby
Explore the daily rainfall trends and prepare for Hornsbys December weather 💧
UV exposure in Hornsby during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
Quick links
You are here
Where is Hornsby?Get accurate weather forecasts for Hornsby, located at latitude -33.702 and longitude 151.099. Stay updated with localized weather information tailored for Hornsby.
Found a mistake?
We appreciate your attention to details. Tell us here.