Mushroom Rock Weather Forecast

    • 15
    • 20

    Sunny

    • 15
    • 19

    Cloudy

    • 14
    • 20

    Mostly sunny

    • 14
    • 22

    Sunny

    • 17
    • 23

    Sunny

    • 17
    • 21

    Shower or two

    • 15
    • 20

    Showers

Today 12 Sep Lower West

Sunny. Winds westerly 15 to 25 km/h becoming light in the evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Westerly about 10 knots.
Seas
Below 1 metre.
1st Swell
West to southwesterly 2 to 3 metres.
Weather
Mostly sunny.
Weather Situation
A westerly flow will continue over local waters this weekend as a cold front brushes past the southwest coast on Sunday night. Winds turning easterly from Monday as a high develops in the Bight. A trough arrives on the west coast on Tuesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mushroom Rock Temperature Statistics View More

September Temperature

Rottnest Island (4km)

  • Lowest 9 September, 2026

    11.5 °C

  • Average September

    15.7 °C

  • Highest 10 September, 2026

    20.9 °C

Climate (2021–2026)

Rottnest Island (4km)

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  • Average Low 2021–2026

    16.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    22.8 °C
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