Perth Weather in August
In August, Perth averages a high of 19°C (66°F) and a low of 9°C (48°F), from 54 years of daily records (1971–2026).
19°C
Average high
66°F
9°C
Average low
48°F
27°C
Record high
81°F · August 15, 2015
1°C
Record low
34°F · August 21, 2000
What August Is Like in Perth
- The warmest August in the record was 2014; the coldest was 1997.
At least 1 mm of rain falls on 43% of August days, and the month averages 119 mm in total.
Warmest: 2014 (21.6°C)Latest: 2026 (20.0°C)10-year averageLong-run average (19.0°C)
Look Up a Day in August
See the weather in Perth on any August date, year by year.
Source: NOAA GHCN-Daily, Perth Metro (1993–2026); Perth Regional Office (1971–1992). Averages cover 1971–2026. How we compute this