Perth Weather in September
20.1°C high · 10.3°C low · 77 mm rain · 8.5h sun
Sep is a warm month in Perth — not peak season, but a good time to avoid crowds.
September at a glance
| Metric | Value |
|---|---|
| Average high | 20.1°C |
| Average low | 10.3°C |
| Rainfall | 77 mm |
| Sunshine | 8.5 hours/day |
| Daylight | 11.8 hours |
What to pack in September
Pack a jacket and layers for Perth in September.
Perth weather by month
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Frequently asked questions
What is the weather in Perth in September?
Highs of 20.1°C and lows of 10.3°C, with about 77 mm of rain and 8.5 hours of sunshine per day.
Is September a good time to visit Perth?
Sep is a warm month in Perth — not peak season, but a good time to avoid crowds.
What to do in Perth · Best time to visit Perth
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.