July Weather in Hornsby, Australia

Last updated: August 22, 2025

In July, the average temperature in Hornsby, Australia is a mild 12°C (53°F), with the mercury occasionally dipping to a low of 0°C (32°F) and soaring to a comfortable high of 26°C (80°F). Expect about 40 mm (1.6 in) of precipitation spread over 4 days, accompanied by an average humidity of 68%. Enjoy the varied weather!

July Temperature in Hornsby

In July in Hornsby, the average temperature is 12°C (53°F), with maximums reaching 26°C (80°F) and minimums dipping as low as 0°C (32°F). This variability makes it an ideal time for travelers to enjoy a mix of pleasant weather and cooler nights, perfect for exploring and outdoor activities.

July Weather in Hornsby: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Hornsby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hornsby, July typically has an average temperature of 12°C (53°F), with highs reaching up to 26°C (80°F) and lows dropping to around 0°C (32°F).

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

July Precipitation in Hornsby

In Hornsby in July, the precipitation amount is 40 mm (1.6 in) spread over a duration of 4 days.

July Precipitation Trends in Hornsby

The chart displays monthly precipitation patterns in Hornsby, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Hornsby, July typically receives around 40 mm (1.6 inches) of precipitation spread over approximately 4 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

July Humidity in Hornsby

In Hornsby in July, humidity is 68%. With an average temperature of 12°C (53°F), this humidity feels like a brisk, damp chill that clings to your skin, making it essential to pack a light jacket while exploring the area.

July Average Humidity in Hornsby

This chart illustrates the average monthly humidity levels in Hornsby, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Hornsby is approximately 68%, offering insight into how humid the weather typically is during this month.

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

July UV Index in Hornsby

In Hornsby in July, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Hornsby for better planning.

Maximum UV Index Levels in Hornsby for July

The chart shows the monthly maximum UV Index (UVI) for Hornsby in July, 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 July, the maximum UV index in Hornsby typically reaches 4, which falls under the moderate exposure category.

Data source: Hornsby July 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 July Weather in Hornsby Compares to Other Months

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

This table compares monthly weather conditions in Hornsby, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (76°F)	37 mm (1.5 inches)	65%	extreme
February Weather	23°C (74°F)	107 mm (4.2 inches)	69%	extreme
March Weather	21°C (70°F)	153 mm (6.0 inches)	72%	extreme
April Weather	18°C (65°F)	29 mm (1.1 inches)	75%	very high
May Weather	15°C (59°F)	42 mm (1.7 inches)	74%	moderate
June Weather	12°C (54°F)	44 mm (1.7 inches)	72%	moderate
July Weather	12°C (53°F)	40 mm (1.6 inches)	68%	moderate
August Weather	13°C (55°F)	34 mm (1.3 inches)	67%	high
September Weather	16°C (60°F)	36 mm (1.4 inches)	63%	very high
October Weather	18°C (65°F)	67 mm (2.6 inches)	55%	very high
November Weather	20°C (68°F)	77 mm (3.0 inches)	57%	extreme
December Weather	22°C (72°F)	76 mm (3.0 inches)	68%	extreme