Perth Weather in September

September in Perth brings pleasant temperatures, with highs of 20°C (68°F) and nights dropping to 10°C (50°F). Rainfall is on the higher side this month, averaging around 63 mm (2.5 in), so keep a rain jacket handy.

Rainfall in Perth in September

Climate statistics over the past 30 years suggest around 10 days of rain, with 63 mm (2.5 in) average for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Perth in September

If you're visiting Perth in September, expect excellent temperatures with highs of 20°C (68°F) and overnight lows of 10°C (50°F). The difference between afternoon and evening temperatures is usually noticeable. Nights fall to 10°C (50°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Perth in September

Expect sunny days throughout the month, with an estimated 230 hours of sunshine. This makes it a pleasant time to visit Perth.

Wind Speed in Perth in September

Average wind conditions reach 6 m/s (12 knots) in September. This creates notably windy weather that is clearly felt and can influence daily activities. Keep in mind this is an average. Some days are less intense, while others can be quite gusty.

Average water temperature in September

The water is 17°C (63°F) this month, cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. April, May, September, October and November typically offer the best weather for Perth.