Month-by-month travel weather
Perth September weather
Perth, Australia · September
Warm days with cooler evenings
More outdoor-friendly days arrive, though September can still be showery.
September averages at a glance
Average low
around 9–11°C
Average high
around 20–22°C
Average precipitation
around 60–100 mm
Precip days
about 8–11 days
What to wear in September in Perth
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Light clothing + thin jacket
- • Optional umbrella
Travel tips for visiting Perth in September
- • Keep an umbrella handy if showers are still in the forecast.
September weather in Perth — FAQ
Q. Is September warm?
A. It’s warming up, but evenings can still feel cool.
Explore Perth
These pages are connected so you can compare conditions and decide for yourself.