When to go · Perth
Perth in September
Great month. Inside Perth's best window: Mar–May, Sep–Nov.
Key facts
- Verdict
- Great
- Temperature
- 21°C (70°F)70°F (21°C) / 10°C (50°F)50°F (10°C)
- average high / low
- Rain days
- 12
- Crowds
- Medium
- Australia overall
- Prices
- Medium
- Australia overall
Verdict
Inside Perth's best window: Mar–May, Sep–Nov.
Is another month better than September?
No other month rates higher than September for Perth in this guide.
Weather in September
- PerthHighs around 21 °C (70 °F), lows around 10 °C (50 °F), rain on about 12 daysHighs around 70 °F (21 °C), lows around 50 °F (10 °C), rain on about 12 days
- South-west, Australia · Perth, Margaret River, Rottnestfine
Dry, hot summers with afternoon sea breeze; wildflowers north of Perth Aug–Oct.
Crowds and prices
- Crowds · Australia overall
- Medium
- Prices · Australia overall
- Medium
Australia overall: Spring in the south, still dry in the north; one of the best months to combine both.
Compare two months
Weather, crowds and prices for any two months in Perth, side by side.
Verdict
Sep: Great
Mar: Great
Daytime high
Sep: 21 °C (70 °F)70 °F (21 °C)
Mar: 30 °C (86 °F)86 °F (30 °C)
Night low
Sep: 10 °C (50 °F)50 °F (10 °C)
Mar: 17 °C (63 °F)63 °F (17 °C)
Rain days
Sep: 12
Mar: 4 (better)
Crowds
Sep: Medium
Mar: Medium
Prices
Sep: Medium
Mar: Medium
Festivals listed
Sep: 0
Mar: 1
September: Inside Perth's best window: Mar–May, Sep–Nov.
March: Inside Perth's best window: Mar–May, Sep–Nov.
Perth: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings
- A rain jacket or umbrella and shoes that dry fast