Third Rocks Weather Forecast

    • 14
    • 22

    Partly cloudy

    • 15
    • 20

    Showers easing

    • 13
    • 20

    Cloudy

    • 13
    • 21

    Cloudy

    • 16
    • 22

    Shower or two

    • 15
    • 19

    Shower or two

    • 11
    • 20

    Mostly sunny

Today 17 Oct Perth

Partly cloudy. The chance of fog in the northeast early this morning. Light winds becoming westerly 15 to 20 km/h in the middle of the day then tending northwesterly in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Variable below 10 knots becoming northwesterly 10 to 15 knots in the early afternoon.
Seas
Below 1 metre.
1st Swell
West to southwesterly 2 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A cold front approaches the southwest coast, moving through early tomorrow. 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

Third Rocks Temperature Statistics View More

October Temperature

Garden Island (8 km)

  • Lowest 2 October, 2026

    9.9 °C

  • Average October

    16.8 °C

  • Highest 14 October, 2026

    29.7 °C

Climate (2021–2026)

Garden Island (8 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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