Best time to visit Perth

January is the best month in Perth, scoring 97 out of 100, with July the weakest at 63. The 34-point spread means timing is worth planning around without being decisive. 7 of the twelve months sit within ten points of the best, so there is more than one right answer.

February is the warmest month at 26.9 °C and July the coolest at 17.6 °C — a 9.3 °C spread across the year.

There is a real wet season here. June to August carry the rain — up to 15 wet days in a month — while January, February, March and December drop as low as 2. That 13-day gap is the biggest single difference between a good month and a bad one in Perth, and it moves further than the temperature does.

The sea is comfortable for swimming in January to June — 22.9 °C at its warmest against 19 °C at its coldest. The water peaks a month or two after the air does, so the best swimming falls later in the year than the best weather. Daylight runs from 10.1 hours in winter to 14.2 in summer, enough to notice on a sightseeing itinerary.

The three strongest months are January, February, December. The one to think twice about is July. Each month below has its own page with rainfall reliability, extremes, daylight, sea temperature and crowd levels.

Perth month by month