Southern Harbour Weather Forecast

    • 12
    • 21

    Mostly clear

    • 13
    • 22

    Partly cloudy

    • 14
    • 20

    Showers easing

    • 12
    • 20

    Partly cloudy

    • 14
    • 22

    Cloudy

    • 15
    • 23

    Possible shower

    • 14
    • 20

    Shower or two

Today 16 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
West to southwesterly 1.5 to 2 metres.
Weather
Mostly clear.
Weather Situation
A cold front approaches the southwest coast, moving through early Sunday. A ridge builds in its wake, ahead of another cold front approaching the south coast on Tuesday.
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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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