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December Weather in Coleraine, Australia

Last updated: August 22, 2025

In Coleraine, Australia, the average temperature in December hovers around 17°C (63°F). Expect a range where the minimum temperature can dip to 3°C (38°F) and the maximum can soar to 44°C (111°F). You’ll also experience an average precipitation of 36 mm (1.4 in) spread over 6 days, coupled with a comfortable average humidity of 50%.

December Temperature in Coleraine

In December in Coleraine, the average temperature is 17°C (63°F). Maximums can reach 44°C (111°F), and minimums can be as low as 3°C (38°F). Be sure to pack layers and prepare for both warm and cool conditions during your travels.

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

The chart illustrates December temperature patterns in Coleraine, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Coleraine, December typically has an average temperature of 17°C (63°F), with highs reaching up to 44°C (111°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec676563575147464750545963
Data source: Temperature data for Coleraine 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 Coleraine

In Coleraine in December, the total precipitation amount is 36 mm (1.4 in), which falls over the course of 6 days.

December Precipitation Trends in Coleraine

The chart displays monthly precipitation patterns in Coleraine, 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 Coleraine, December typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec272425407246727566636136
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Coleraine

In Coleraine in December humidity is 50%. With an average temperature of 17°C (63°F), this humidity feels like a refreshing stroll through a gentle spring breeze, making it an ideal time for traveling and exploring the sights comfortably.

December Average Humidity in Coleraine

This chart illustrates the average monthly humidity levels in Coleraine, 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 Coleraine is approximately 50%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec45%49%57%67%75%79%80%75%69%59%56%50%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Coleraine

In Coleraine 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 Coleraine, you can check here.

Maximum UV Index Levels in Coleraine for December

The chart shows the monthly maximum UV Index (UVI) for Coleraine 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 Coleraine typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec14121174335791214
Data source: Coleraine 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 Coleraine Compares to Other Months

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

This table compares monthly weather conditions in Coleraine, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (68°F)27 mm (1.1 inches)45%extreme
February Weather18°C (65°F)24 mm (1.0 inches)49%extreme
March Weather17°C (63°F)25 mm (1.0 inches)57%extreme
April Weather14°C (58°F)40 mm (1.6 inches)67%high
May Weather11°C (51°F)72 mm (2.8 inches)75%moderate
June Weather8°C (47°F)46 mm (1.8 inches)79%moderate
July Weather8°C (47°F)72 mm (2.8 inches)80%moderate
August Weather8°C (47°F)75 mm (2.9 inches)75%moderate
September Weather10°C (50°F)66 mm (2.6 inches)69%high
October Weather12°C (54°F)63 mm (2.5 inches)59%very high
November Weather15°C (59°F)61 mm (2.4 inches)56%extreme
December Weather17°C (63°F)36 mm (1.4 inches)50%extreme

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