Perth weather in September
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Perth September weather at a glance
In September, Perth averages 15.2°C, with typical highs of 20°C and lows of 11°C. The historical average is 8 wet days and 72% humidity.
Perth September temperature & humidity
Perth September rain & wet days
Pack a compact umbrella. Keep an indoor stop available between outdoor activities.
What to wear in Perth in September
T-shirts or long sleeves with one light outer layer should be comfortable.
- DaytimeLong sleeves and a light jacket · average high 20°C
- Morning & eveningLong sleeves with a jacket or cardigan · average low 11°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Perth September sunrise & sunset times
2026 September · Local time (Australia/Perth)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-09-01 | 06:34 | 18:00 | 11h 26m |
| 2026-09-15 | 06:16 | 18:08 | 11h 53m |
| 2026-09-30 | 05:56 | 18:18 | 12h 22m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
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Today’s weather and forecast
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Forecast · Windy. Monthly averages are in the Temperature section.
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Best months to visit Perth
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
September weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Perth weather like in September?
In September, Perth averages 15.2°C, with typical highs of 20°C and lows of 11°C. The historical average is 8 wet days and 72% humidity. Our weather-comfort rating for this month is good.
Does it rain a lot in Perth in September?
There are about 8 wet days in September. A compact umbrella is still useful.
What should I wear in Perth in September?
T-shirts or long sleeves with one light outer layer should be comfortable.
What are the best months to visit Perth?
Recent weather data rates January, February, March, April among the more comfortable months.
Where can I check Perth weather in September in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Perth in September?
On 2026-09-15, calculated sunrise is 06:16 and sunset is 18:08 in local time (Australia/Perth). Times vary by date and terrain.
Perth weather by month
More Oceania destinations in September
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations