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December Weather in Collie, Australia

Last updated: August 22, 2025

In December, the average temperature in Collie, Australia hovers around 21°C (69°F). Expect a range from a cool 6°C (43°F) at its lowest to a sweltering 39°C (102°F) at its peak. Rainfall is minimal, with only 13 mm (0.5 in) spread across 3 days, while the average humidity sits comfortably at 53%.

December Temperature in Collie

In December in Collie, the average temperature is 21°C (69°F). The maximum can reach 39°C (102°F), while the minimum can drop to as low as 6°C (43°F). Be prepared for a wide range of temperatures, making it essential to pack both warm and cool clothing for your travels.

December Weather in Collie: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Collie, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Collie, December typically has an average temperature of 21°C (69°F), with highs reaching up to 39°C (102°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec717068625653525154576369
Data source: Temperature data for Collie 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 Collie

In Collie in December, the precipitation amount is 13 mm (0.5 in) over a span of 3 days.

December Precipitation Trends in Collie

The chart displays monthly precipitation patterns in Collie, 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 Collie, December typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec13532929659312510364432813
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Collie

In Collie in December, humidity is 53%. With an average temperature of 21°C (69°F), this humidity feels like a refreshing embrace; perfect for exploring the sights without feeling too sticky or uncomfortable.

December Average Humidity in Collie

This chart illustrates the average monthly humidity levels in Collie, 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 Collie 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 Collie

In Collie 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 Collie, you can check here.

Maximum UV Index Levels in Collie for December

The chart shows the monthly maximum UV Index (UVI) for Collie 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 Collie typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141412854468101314
Data source: Collie 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 Collie Compares to Other Months

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

This table compares monthly weather conditions in Collie, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (71°F)13 mm (0.5 inches)52%extreme
February Weather21°C (71°F)53 mm (2.1 inches)55%extreme
March Weather20°C (68°F)29 mm (1.2 inches)59%extreme
April Weather17°C (62°F)29 mm (1.1 inches)70%very high
May Weather13°C (56°F)65 mm (2.5 inches)72%moderate
June Weather11°C (53°F)93 mm (3.7 inches)77%moderate
July Weather11°C (52°F)125 mm (4.9 inches)77%moderate
August Weather11°C (52°F)103 mm (4.1 inches)75%high
September Weather12°C (54°F)64 mm (2.5 inches)71%very high
October Weather14°C (58°F)43 mm (1.7 inches)63%very high
November Weather17°C (63°F)28 mm (1.1 inches)56%extreme
December Weather21°C (69°F)13 mm (0.5 inches)53%extreme

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