Historical Weather in Perth, Australia
See 55+ years of weather history for any date in Perth going back to 1970.
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Monthly Climate Averages
Historical temperature and precipitation averages for Perth, Australia, based on 55+ years of weather data.
Temperatures shown in Celsius with Fahrenheit in parentheses. Rainfall in millimetres, snowfall in centimetres.
Perth Weather by Month
A typical January brings 7.4 days above 35°C (95°F).
The February heat record, 44°C (111°F) on February 4, 1982, has stood for 44 years.
A typical March brings 3.4 days above 35°C (95°F).
April 2026 was the 5th coldest April in 55 years of records, 1.5°C (2.7°F) below the long-run average.
May in Perth has become 0.6°C (1.1°F) cooler on average: the 2012–2026 average against 1970–1989.
The June heat record, 27°C (80°F) on June 3, 1984, has stood for 42 years.
The July heat record, 26°C (79°F) on July 17, 1976, has stood for 50 years.
The warmest August in the record was 2014; the coldest was 1997.
The warmest September in the record was 2023; the coldest was 2016.
7 of the 10 warmest Octobers on record in Perth have come since 2011.
5 of the 10 warmest Novembers on record in Perth have come since 2011.
7 of the 10 warmest Decembers on record in Perth have come since 2011.
Source: NOAA GHCN-Daily, Perth Metro (1993–2026); Perth Regional Office (1971–1992). Records through 2026.