Weather in Perth in August
August in Perth is mild with average temperatures around 15.6°C (60.1°F). Expect significant rainfall with 106mm across approximately 14 days.
Data Note: Temperature values are 2001–2020 satellite/reanalysis grid averages from NASA POWER and may differ from airport station normals by a few degrees.
Temperature
High
17.7°C
63.9°F
Low
13.5°C
56.3°F
Precipitation
106 mm
4.2 inches
~14 rainy days
Conditions
Humidity
74%
Comparison to Adjacent Months
August is 22mm drier than July.
August is 37mm wetter than September.