Perth Weather in July
In July, Perth averages a high of 18°C (65°F) and a low of 9°C (48°F), from 54 years of daily records (1971–2026).
18°C
Average high
65°F
9°C
Average low
48°F
26°C
Record high
79°F · July 17, 1976
0°C
Record low
32°F · July 15, 1997
What July Is Like in Perth
- The July heat record, 26°C (79°F) on July 17, 1976, has stood for 50 years.
- July is Perth's coldest month of the year.
- July is the wettest month of the year in Perth, averaging 154 mm of rain.
- The warmest July in the record was 1976; the coldest was 1998.
At least 1 mm of rain falls on 48% of July days, and the month averages 154 mm in total.
Warmest: 1977 (19.9°C)Latest: 2026 (19.8°C)10-year averageLong-run average (18.4°C)
Look Up a Day in July
See the weather in Perth on any July 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