Thornlie, in Western Australia, Australia, is home to roughly 23,700 people in the Australian Western time zone at 32.1°S latitude.
In 2025, Thornlie recorded an average annual temperature of 66°F. The hottest temperatures reached 111°F in January; the coolest were 38°F in July. Total precipitation for the year was 33 inches, with the wettest month being August.
View current conditions and forecast for Thornlie · More cities in Western Australia