About Perth, Western Australia's Climate & Weather History

Perth is a city of approximately 2.3 million people in Western Australia, Australia. Located in the Australian Western time zone at 32°S latitude.

In 2025, Perth recorded an average annual temperature of 66°F. The hottest temperatures reached 109°F in January; the coolest were 40°F in July. Total precipitation for the year was 38 inches, with the wettest month being August.