*** The winter months in Perth are from June to August and are mild, with an average temperature of 18 degrees C during the day, and 9 degrees C at night. The wettest month of the year is July, and the average yearly rainfall is around 880mm. The rain seems to come down hard and quickly, and will be followed in many instances with sunny periods. It rarely gets cold enough for snow to fall or frost to form.
The average annual rainfall is 629 mm with an average of 108 rain days per year. Rainfall is reasonably evenly distributed throughout the year with the wettest month being October (65.3 mm) and the driest being June (39.6 mm).