Is Perth hot in September?
Days are typically mild at 20.5°C, while nights average 9.6°C.
Australia · 1991–2020 normal
Perth in
September.
Typical September weather in Perth: 20.5°C by day, 9.6°C at night, 83 mm of rain over 10.9 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high20.5°C
Typical low9.6°C
Rain83 mm
Wet days10.9
In the year-round weather comparison, September scores 65 out of 100 (April leads the year at 90). Daylight is calculated as 11 h 56 from latitude -31.95°. Open-water sea temperature is 18.7°C (24 km from the place centre).
September at a glance
What is Perth like in September?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 83 mm across about 11 wet days.
How much daylight is there?
There are about 11 h 56 between sunrise and sunset at mid-month, calculated from the place latitude.
Is September a good time to visit?
September ranks 9 of 12 in our weather comparison; April ranks first.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 2063523
- NOAA station
- ASN00009225 · PERTH METRO
- Station distance
- 3.8 km from the place centre
- Coverage
- Strong coverage · 27 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Perth is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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