Third Rocks Weather Forecast

    • 16
    • 25

    Clear

    • 16
    • 23

    Showers increasing

    • 16
    • 21

    Shower or two

    • 13
    • 21

    Partly cloudy

    • 12
    • 22

    Showers increasing

    • 14
    • 19

    Showers easing

    • 10
    • 21

    Cloudy

Today 16 Apr Perth

Mostly sunny. Slight chance of a shower. The chance of a thunderstorm. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
South to southwesterly about 10 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Mostly sunny.
Weather Situation
A ridge sits over the Local Waters ahead of a cold front Friday night. A ridge will develop momentarily over southern parts ahead of the next cold front Monday night.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Third Rocks Temperature Statistics View More

April Temperature

Garden Island (8km)

  • Lowest 8 April, 2026

    13.1 °C

  • Average April

    19.4 °C

  • Highest 3 April, 2026

    28.7 °C

Climate (2021–Present)

Garden Island (8km)

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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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