January Weather in Onslow, Australia

Last updated: August 22, 2025

In Onslow, Australia, the average temperature in January reaches a warm 31°C (88°F), with extremes ranging from a comfortable 22°C (72°F) to a scorching 47°C (116°F). During this time, you can expect 10 mm (0.4 in) of precipitation over approximately 2 days, resulting in an average humidity of 83% that adds to the tropical atmosphere.

January Temperature in Onslow

In January in Onslow, the average temperature is 31°C (88°F). The maximum can reach 47°C (116°F), while the minimum can be as low as 22°C (72°F). Travelers should prepare for hot weather and stay hydrated while enjoying all the attractions that Onslow has to offer.

January Weather in Onslow: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Onslow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Onslow, January typically has an average temperature of 31°C (88°F), with highs reaching up to 47°C (116°F) and lows dropping to around 22°C (72°F).

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

January Precipitation in Onslow

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

January Precipitation Trends in Onslow

The chart displays monthly precipitation patterns in Onslow, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Onslow, January typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 2 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Onslow

In Onslow in January humidity is 83%. With an average temperature of 31°C (88°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel more laborious and sweat-inducing, as every step can leave you feeling damp and lethargic.

January Average Humidity in Onslow

This chart illustrates the average monthly humidity levels in Onslow, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Onslow is approximately 83%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Onslow

In Onslow in January, 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 Onslow.

Maximum UV Index Levels in Onslow for January

The chart shows the monthly maximum UV Index (UVI) for Onslow in January, 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 January, the maximum UV index in Onslow typically reaches 15, which falls under the extreme exposure category.

Data source: Onslow January 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 January Weather in Onslow Compares to Other Months

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

This table compares monthly weather conditions in Onslow, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	31°C (88°F)	10 mm (0.4 inches)	83%	extreme
February Weather	30°C (87°F)	25 mm (1.0 inches)	82%	extreme
March Weather	31°C (88°F)	37 mm (1.5 inches)	77%	extreme
April Weather	29°C (84°F)	15 mm (0.6 inches)	74%	extreme
May Weather	24°C (76°F)	18 mm (0.7 inches)	68%	very high
June Weather	20°C (69°F)	36 mm (1.4 inches)	64%	high
July Weather	20°C (68°F)	3 mm (0.1 inches)	61%	very high
August Weather	21°C (70°F)	2 mm (0.1 inches)	65%	very high
September Weather	24°C (75°F)	0 mm (0.0 inches)	67%	extreme
October Weather	25°C (78°F)	0 mm (0.0 inches)	74%	extreme
November Weather	27°C (81°F)	2 mm (0.1 inches)	75%	extreme
December Weather	30°C (86°F)	1 mm (0.0 inches)	81%	extreme