Southern Harbour Weather Forecast

    • 12
    • 21

    Clear

    • 14
    • 22

    Shower or two

    • 14
    • 20

    Shower or two

    • 12
    • 18

    Shower or two

    • 9
    • 18

    Partly cloudy

    • 8
    • 19

    Partly cloudy

    • 10
    • 21

    Partly cloudy

Today 20 Oct Perth

Clear. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
West to southwesterly below 10 knots.
Seas
Below 0.5 metres.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Mostly clear.
Weather Situation
A ridge over the Local Waters is weakening. A series of weak cold fronts will brush past the southwest coast from Wednesday until Saturday. A new ridge will develop over southern WA on the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Southern Harbour Temperature Statistics View More

October Temperature

Garden Island (12 km)

  • Lowest 2 October, 2026

    9.9 °C

  • Average October

    16.9 °C

  • Highest 14 October, 2026

    29.7 °C

Climate (2021–2026)

Garden Island (12 km)

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  • Average Low 2021–2026

    15.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    23.3 °C
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