About Hornsby Heights, New South Wales's Climate & Weather History

Hornsby Heights is a city of approximately 6,200 people in New South Wales, Australia. Located in the Australian Eastern time zone at 33.7°S latitude.

In 2025, Hornsby Heights recorded an average annual temperature of 63°F. The hottest temperatures reached 105°F in January; the coolest were 36°F in June. Total precipitation for the year was 43 inches, with the wettest month being August.