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December Weather in Wilmington, Australia

Last updated: August 22, 2025

In Wilmington, Australia, the average temperature in December hovers around 22°C (73°F), with potential extremes ranging from a chilly 10°C (51°F) to a scorching 45°C (113°F). Expect about 21 mm (0.8 in) of precipitation spread over 4 days, all while enjoying an average humidity of 37%. Perfect for those seeking a balance of warmth with a hint of adventure!

December Temperature in Wilmington

In December in Wilmington, the average temperature is 22°C (73°F). Maximum temperatures can reach 45°C (113°F), while minimums can dip as low as 10°C (51°F). This varied climate makes Wilmington an exciting destination for travelers who enjoy both warm days and cooler nights.

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

The chart illustrates December temperature patterns in Wilmington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wilmington, December typically has an average temperature of 22°C (73°F), with highs reaching up to 45°C (113°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec757371655651515259646872
Data source: Temperature data for Wilmington 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 Wilmington

In Wilmington in December, the precipitation amount is 21 mm (0.8 in) over a span of 4 days.

December Precipitation Trends in Wilmington

The chart displays monthly precipitation patterns in Wilmington, 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 Wilmington, December typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec13198212221192815293821
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Wilmington

In Wilmington in December, humidity is 37%. With an average temperature of 22°C (73°F), this humidity feels like a comfortable and refreshing atmosphere for traveling, allowing for pleasant outdoor activities without the discomfort of excessive mugginess.

December Average Humidity in Wilmington

This chart illustrates the average monthly humidity levels in Wilmington, 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 Wilmington is approximately 37%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec30%35%50%60%69%71%72%64%57%40%40%37%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Wilmington

In Wilmington in December, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Wilmington.

Maximum UV Index Levels in Wilmington for December

The chart shows the monthly maximum UV Index (UVI) for Wilmington 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 Wilmington typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151412964468111315
Data source: Wilmington 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 Wilmington Compares to Other Months

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

This table compares monthly weather conditions in Wilmington, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)13 mm (0.5 inches)30%extreme
February Weather23°C (73°F)19 mm (0.7 inches)35%extreme
March Weather22°C (71°F)7 mm (0.3 inches)50%extreme
April Weather18°C (65°F)21 mm (0.8 inches)60%very high
May Weather13°C (56°F)22 mm (0.9 inches)69%high
June Weather11°C (51°F)21 mm (0.8 inches)71%moderate
July Weather11°C (51°F)19 mm (0.7 inches)72%moderate
August Weather11°C (52°F)28 mm (1.1 inches)64%high
September Weather15°C (59°F)15 mm (0.6 inches)57%very high
October Weather18°C (64°F)29 mm (1.2 inches)40%extreme
November Weather20°C (68°F)38 mm (1.5 inches)40%extreme
December Weather22°C (73°F)21 mm (0.8 inches)37%extreme

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