Carnac Island Weather Forecast

    • 8
    • 18

    Cloudy

    • 10
    • 20

    Cloudy

    • 11
    • 19

    Possible shower

    • 10
    • 20

    Mostly sunny

    • 9
    • 19

    Sunny

    • 9
    • 21

    Shower or two

    • 11
    • 18

    Showers. Becoming windy

Today 20 Jun Perth

Cloudy. Winds northeasterly 15 to 20 km/h becoming light in the late afternoon.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Northeasterly 10 to 15 knots tending northerly in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Cloudy.
Weather Situation
A ridge over local waters is contracting east. A cold front will move through early Monday, ahead of a new weak ridge from later Monday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Carnac Island Temperature Statistics View More

June Temperature

Garden Island (13km)

  • Lowest 18 June, 2026

    6.5 °C

  • Average June

    14.5 °C

  • Highest 7 June, 2026

    21 °C

Climate (2021–2026)

Garden Island (13km)

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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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