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December Weather in Dalmeny, Australia

Last updated: August 22, 2025

In December, the average temperature in Dalmeny, Australia hovers around 19°C (67°F). Daytime highs can reach up to 30°C (86°F), while the nights are cooler, with minimums of 14°C (58°F). Expect 110 mm (4.3 in) of precipitation spread across 12 days, contributing to an average humidity level of 75%.

December Temperature in Dalmeny

In December in Dalmeny, the average temperature is 19°C (67°F). The maximum can reach 30°C (86°F) and the minimum can be as low as 14°C (58°F). This moderate climate makes it a perfect time for outdoor activities and exploring the local sights.

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

The chart illustrates December temperature patterns in Dalmeny, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dalmeny, December typically has an average temperature of 19°C (67°F), with highs reaching up to 30°C (86°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec706968656157565658616366
Data source: Temperature data for Dalmeny 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 Dalmeny

In Dalmeny in December, the precipitation amount is 110 mm (4.3 in) over a span of 12 days.

December Precipitation Trends in Dalmeny

The chart displays monthly precipitation patterns in Dalmeny, 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 Dalmeny, December typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec5010912740777978814092108110
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Dalmeny

In Dalmeny in December humidity is 75%. With an average temperature of 19°C (67°F), this humidity feels like a warm embrace, making travel invigorating yet slightly sticky, as you navigate through the vibrant streets or scenic landscapes.

December Average Humidity in Dalmeny

This chart illustrates the average monthly humidity levels in Dalmeny, 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 Dalmeny is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%76%75%73%71%70%71%70%68%68%70%75%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Dalmeny

In Dalmeny 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 Dalmeny, you can check here.

Maximum UV Index Levels in Dalmeny for December

The chart shows the monthly maximum UV Index (UVI) for Dalmeny 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 Dalmeny typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec14131175335791114
Data source: Dalmeny 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 Dalmeny Compares to Other Months

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

This table compares monthly weather conditions in Dalmeny, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (71°F)50 mm (2.0 inches)75%extreme
February Weather21°C (69°F)109 mm (4.3 inches)76%extreme
March Weather20°C (69°F)127 mm (5.0 inches)75%extreme
April Weather18°C (65°F)40 mm (1.6 inches)73%high
May Weather16°C (61°F)77 mm (3.0 inches)71%moderate
June Weather14°C (57°F)79 mm (3.1 inches)70%moderate
July Weather13°C (56°F)78 mm (3.1 inches)71%moderate
August Weather13°C (56°F)81 mm (3.2 inches)70%moderate
September Weather14°C (58°F)40 mm (1.6 inches)68%high
October Weather16°C (61°F)91 mm (3.6 inches)68%very high
November Weather17°C (64°F)108 mm (4.2 inches)70%extreme
December Weather19°C (67°F)110 mm (4.3 inches)75%extreme

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