Perth Average Temperature by Month

This page shows the average temperature in each month of the year in Perth, Western Australia. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Perth?
In Perth, Western Australia, the warmest month is February, with an average daily high temperature of 32.3 °C and an average low of 17.8 °C.
What's the Coldest Month in Perth?
In Perth, Western Australia, the coolest month is July, with an average daily high temperature of 18.5 °C and an average low of 8.2 °C.
Month Avg. High Avg. Low
January 32.3 °C 17.6 °C
February 32.3 °C 17.8 °C
March 30.1 °C 16.3 °C
April 26.4 °C 13.5 °C
May 22.4 °C 10.6 °C
June 19.5 °C 9.0 °C
July 18.5 °C 8.2 °C
August 19.1 °C 8.3 °C
September 20.5 °C 9.1 °C
October 23.7 °C 10.8 °C
November 27.0 °C 13.4 °C
December 30.2 °C 15.7 °C
Year 25.1 °C 12.5 °C
Weather Station Details
Years Station Coordinates
1945–2024 Perth Airport location
1877–1944 Perth Regional Office location
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