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December Weather in Boyup Brook, Australia

Last updated: August 22, 2025

In December, the average temperature in Boyup Brook, Australia hovers around 20°C (68°F), with a comfortable average humidity of 53%. However, be prepared for temperature fluctuations, as it can dip to a chilly 5°C (41°F) or soar to a scorching 39°C (103°F). Additionally, expect about 12 mm (0.5 in) of precipitation spread over 2 days during the month.

December Temperature in Boyup Brook

In December in Boyup Brook, the average temperature is 20°C (68°F). Maximums can reach 39°C (103°F), and minimums can be as low as 5°C (41°F). This diverse range of temperatures makes Boyup Brook an exciting destination for travelers seeking both warmth and cooler escapes.

December Weather in Boyup Brook: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Boyup Brook, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Boyup Brook, December typically has an average temperature of 20°C (68°F), with highs reaching up to 39°C (103°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec706967615552515053576168
Data source: Temperature data for Boyup Brook generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Boyup Brook

In Boyup Brook in December, the precipitation amount is 12 mm (0.5 in) over the course of 2 days.

December Precipitation Trends in Boyup Brook

The chart displays monthly precipitation patterns in Boyup Brook, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Boyup Brook, December typically receives around 12 mm (0.5 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec94328234657716947312112
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Boyup Brook

In Boyup Brook in December humidity is 53%. With an average temperature of 20°C (68°F), this humidity feels like a gentle embrace, making it quite pleasant for traveling.

December Average Humidity in Boyup Brook

This chart illustrates the average monthly humidity levels in Boyup Brook, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Boyup Brook is approximately 53%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec53%55%59%70%72%77%77%75%71%63%56%53%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Boyup Brook

In Boyup Brook in December, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Boyup Brook, you can check here.

Maximum UV Index Levels in Boyup Brook for December

The chart shows the monthly maximum UV Index (UVI) for Boyup Brook in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Boyup Brook typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141412854468101314
Data source: Boyup Brook December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Boyup Brook Compares to Other Months

Weather in Boyup Brook varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Boyup Brook, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Boyup Brook, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (70°F)9 mm (0.4 inches)52%extreme
February Weather20°C (69°F)43 mm (1.7 inches)55%extreme
March Weather19°C (67°F)28 mm (1.1 inches)59%extreme
April Weather16°C (61°F)23 mm (0.9 inches)70%very high
May Weather13°C (55°F)46 mm (1.8 inches)72%moderate
June Weather11°C (52°F)57 mm (2.2 inches)77%moderate
July Weather10°C (51°F)71 mm (2.8 inches)77%moderate
August Weather10°C (51°F)69 mm (2.7 inches)75%high
September Weather12°C (53°F)47 mm (1.9 inches)71%very high
October Weather14°C (57°F)31 mm (1.2 inches)63%very high
November Weather16°C (62°F)21 mm (0.8 inches)56%extreme
December Weather20°C (68°F)12 mm (0.5 inches)53%extreme

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