Byron Bay
December
Weather in Byron Bay for December 2025
Your guide to Byron Bay weather in December - trends and predictions
Until now, December 2025 in Byron Bay is slightly cooler than the historical average by -0.9 °C.
The forecast for the next days in Byron Bay predicts temperatures to be around 27 °C, close to the historical average.
In general, the average temperature in Byron Bay at the beginning of December is 26.7 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 25 °C by the end of December.
The climate of Byron Bay in December is notably wet, with an average of 14 rainy days, and a total of 194.2 mm of precipitation.
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Temperatures
Rain 🌧️
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17
Dry days
14
Rainy days
0
Snow days
27°/20°
Temperatures
21 km/h
Avg max wind
78 %
Avg humidity
Byron Bay Weather December
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Temperatures trend during December in Byron Bay
See the weather trend as well as the moving average line
December weather in Byron Bay day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Moderate or heavy rain shower | 26° /19° | 30.5 mm | 10 | |
| 2 Dec. | Moderate or heavy rain shower | 26° /18° | 2.4 mm | 9 | |
| 3 Dec. |  Sunny | 25° /17° | 0.1 mm | 9 | |
| 4 Dec. |  Patchy rain possible | 26° /18° | 0.2 mm | 9 | |
| 5 Dec. | Moderate rain at times | 27° /19° | 0.7 mm | 10 | |
| 6 Dec. | Patchy rain possible | 27° /19° | 0.2 mm | 10 | |
| 7 Dec. |  Partly cloudy | 30° /20° | 8.1 mm | 10 | |
| 8 Dec. | Moderate or heavy rain shower | 28° /20° | 11.9 mm | 9 | |
| 9 Dec. | Moderate or heavy rain shower | 27° /21° | 3.2 mm | 10 | |
| 10 Dec. | Moderate or heavy rain shower | 28° /21° | 16.8 mm | 9 | |
| 11 Dec. | Moderate or heavy rain shower | 25° /20° | 4.3 mm | 9 | |
| 12 Dec. | Partly cloudy | 24° /18° | 6.4 mm | 9 | |
| 13 Dec. |  Cloudy | 26° /19° | 0.1 mm | 9 | |
| 14 Dec. | Moderate or heavy rain shower | 27° /20° | 3.9 mm | 9 | |
| 15 Dec. | Patchy rain possible | 27° /21° | 1.3 mm | 9 | |
| 16 Dec. | Patchy rain possible | 26° /22° | 3.4 mm | 9 | |
| 17 Dec. | Patchy rain possible | 24° /20° | 0.7 mm | 2.1 | |
| 18 Dec. | Sunny | 25° /19° | 0.1 mm | 3.3 | |
| 19 Dec. | Sunny | 28° /18° | 0 mm | 3.7 | |
| 20 Dec. | Sunny | 30° /20° | 0 mm | 3.6 | |
| 21 Dec. | Patchy rain possible | 32° /23° | 0.2 mm | 3.5 | |
| 22 Dec. | Patchy rain possible | 34° /23° | 4.5 mm | 9 | |
| 23 Dec. | Patchy rain possible | 29° /22° | 2.5 mm | 8 | |
| 24 Dec. | Patchy rain possible | 27° /22° | 0.2 mm | 8 | |
| 25 Dec. | Patchy rain possible | 28° /21° | 0.2 mm | 8 | |
| 26 Dec. | Patchy rain possible | 23° /20° | 4.5 mm | 8 | |
| 27 Dec. | Patchy rain possible | 23° /20° | 0.8 mm | 8 | |
| 28 Dec. | Patchy rain possible | 24° /20° | 0.8 mm | 8 | |
| 29 Dec. | Partly cloudy | 25° /20° | 0.1 mm | 9 | |
| 30 Dec. | Patchy rain possible | 26° /21° | 0.8 mm | 8 | |
| 31 Dec. | Patchy rain possible | 26° /20° | 0.6 mm | 9 | |
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Important Notice
Our weather forecast for Byron Bay 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 Byron Bay forecast closer to your planned date for the most up-to-date weather information.
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Byron Bay in December - FAQ
What are the expected maximum and minimum temperatures in Byron Bay during December?
During December, expect a variety of temperatures with highs around 27° and lows near 20°, suitable for diverse activities and preferences.
How much rainfall should be expected in Byron Bay during December?
Significant rainfall exceeding 194.2 mm is expected in Byron Bay during December, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Byron Bay during December?
The average wind speed in Byron Bay during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Byron Bay
Explore the daily rainfall trends and prepare for Byron Bays December weather 💧
Typically, Byron Bay has 14 rainy days in December with a total of 194.2 mm of rainfall.
UV exposure in Byron Bay during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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