December Weather in Sinclair, Australia

Last updated: August 22, 2025

In Sinclair, Australia, the average temperature in December hovers around 19°C (66°F). The climate can be quite variable, with minimum temperatures dipping to 12°C (53°F) and maximums soaring up to 34°C (94°F). Expect a light precipitation of about 10 mm (0.4 in) spread over 2 days, while the average humidity rests at a comfortable 48%. Enjoy the pleasant conditions this month!

December Temperature in Sinclair

In December in Sinclair, the average temperature is 19°C (66°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 12°C (53°F). This pleasant climate makes Sinclair an ideal destination for outdoor adventures and sightseeing during this time of year.

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

The chart illustrates December temperature patterns in Sinclair, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sinclair, December typically has an average temperature of 19°C (66°F), with highs reaching up to 34°C (94°F) and lows dropping to around 12°C (53°F).

Data source: Temperature data for Sinclair generated using information from the Copernicus Climate Change Service.

December Precipitation in Sinclair

In Sinclair in December, the precipitation amount is 10 mm (0.4 in) over a period of 2 days.

December Precipitation Trends in Sinclair

The chart displays monthly precipitation patterns in Sinclair, 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 Sinclair, December typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 2 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Sinclair

In Sinclair in December, humidity is 48%. With an average temperature of 19°C (66°F), this humidity feels like a comfortable embrace, making it pleasant for travelers to explore the surroundings without feeling overly sticky or weighed down.

December Average Humidity in Sinclair

This chart illustrates the average monthly humidity levels in Sinclair, 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 Sinclair is approximately 48%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sinclair

In Sinclair 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 Sinclair, you can check here.

Maximum UV Index Levels in Sinclair for December

The chart shows the monthly maximum UV Index (UVI) for Sinclair 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 Sinclair typically reaches 14, which falls under the extreme exposure category.

Data source: Sinclair 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 Sinclair Compares to Other Months

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

This table compares monthly weather conditions in Sinclair, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	20°C (68°F)	14 mm (0.6 inches)	50%	extreme
February Weather	20°C (68°F)	69 mm (2.7 inches)	55%	extreme
March Weather	20°C (68°F)	37 mm (1.4 inches)	59%	extreme
April Weather	18°C (65°F)	23 mm (0.9 inches)	70%	very high
May Weather	16°C (60°F)	46 mm (1.8 inches)	73%	moderate
June Weather	14°C (58°F)	53 mm (2.1 inches)	77%	moderate
July Weather	13°C (56°F)	67 mm (2.6 inches)	74%	moderate
August Weather	13°C (56°F)	98 mm (3.9 inches)	67%	high
September Weather	14°C (58°F)	45 mm (1.8 inches)	60%	very high
October Weather	15°C (60°F)	47 mm (1.8 inches)	48%	very high
November Weather	17°C (62°F)	41 mm (1.6 inches)	48%	extreme
December Weather	19°C (66°F)	10 mm (0.4 inches)	48%	extreme