About Joondalup, Western Australia's Climate & Weather History

Joondalup, in Western Australia, Australia, is home to roughly 9,300 people in the Australian Western time zone at 31.7°S latitude.

In 2025, Joondalup recorded an average annual temperature of 66°F. The hottest temperatures reached 112°F in January; the coolest were 37°F in July. Total precipitation for the year was 31 inches, with the wettest month being August.