Australia
Perth in September
🌷 SpringPleasant and some showers.
Why September scores 9.4What goes into the score
How it works- Weather comfort9.1
- ✓Comfortable temperatures (21°C highs / 10°C lows)
- ✓Comfortable humidity (dew point 11°C)
- ✓Mostly dry (~79 mm rain)
- Air quality10.0
- ✓Good (within WHO guideline) (PM2.5 ~5 µg/m³)
- Seasonal hazards10.0
- ·No notable seasonal hazards
- Safety baseline8.5
- ·Normal precautions
| Sep | Apr | |
|---|---|---|
| Score | 9.4 Excellent | 9.8 Excellent |
| Season | 🌷 Spring | 🍂 Autumn |
| High / low | 21° / 10° | 26° / 14° |
| Rain | 79 mm | 36 mm |
| Humidity | dew pt 11° | dew pt 14° |
| PM2.5 | 5 µg/m³ | 5 µg/m³ |
Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Perth weather-station normals. Rainfall: Perth weather-station normals (national met service).
Holidays & crowdsSeptember 2027
No long holidaysNo long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.
No national public holidays in Australia this month.
National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).
Explore PerthEvents, sights, food & souvenirs
Check event dates locallyThe capital of Western Australia, a sunny, isolated city on the Swan River near Indian Ocean beaches, Fremantle and Rottnest Island.
Wildflower seasonDate variesUsually August to November, starting in the north
Western Australia's huge range of native wildflowers blooms in spring.
Why go: Peak timing varies with rainfall.
Where: Kings Park and regions north and south of Perth
Kings Park FestivalDate variesUsually September
A spring festival with wildflower displays, guided walks and events.
Why go: A convenient way to see wildflowers without leaving the city.
Where: Kings Park and Botanic Garden
Coming up later
Perth FestivalDate variesUsually February to early March
Australia's oldest international arts festival, with theatre, music and outdoor films.
Why go: Many events are outdoors on warm summer evenings.
Where: Venues across the city
Kings Park and Botanic Gardengreat in Sep
A large park above the city with native bushland, a treetop walkway and river views.
Rottnest Island
A car-free island of bays and beaches, famous for quokkas, reached by ferry.
💡 Do not feed or touch the quokkas.
Fremantle
A port city with heritage buildings, markets and the UNESCO-listed Fremantle Prison.
Cottesloe Beach
A popular Indian Ocean beach known for sunsets.
Swan Valley
A wine and food region on the city's northeastern edge.
The Pinnacles
Thousands of limestone spires in Nambung National Park, a long day trip north.
Western rock lobster
Locally caught lobster, also called crayfish.
Fish and chips
Fresh fish and chips eaten by the water.
💡 Fishing Boat Harbour in Fremantle
Margaret River wine
Wine from WA's best-known wine region, three hours south.
Marron
A large freshwater crayfish native to Western Australia.
Craft beer
Western Australia has a strong small-brewery scene.
💡 Fremantle and the Swan Valley
Western Australian wine
Bottles from Margaret River and the Swan Valley.
Broome pearls
South Sea pearls from Western Australia's north coast.
Aboriginal art
Works by Aboriginal artists.
💡 Galleries that work directly with artists and community art centres