Marjorie Bay Weather Forecast

    • 11
    • 17

    Showers easing

    • 13
    • 18

    Showers. Windy

    • 13
    • 17

    Shower or two

    • 13
    • 18

    Morning shower or two

    • 12
    • 18

    Cloud clearing

    • 13
    • 20

    Sunny

    • 15
    • 22

    Sunny

Today 16 Sep Lower West

Partly cloudy. High chance of showers in the south, medium chance elsewhere. Light winds becoming west to northwesterly 15 to 20 km/h in the middle of the day then tending north to northwesterly in the late evening. Overnight temperatures falling to between 5 and 8 with daytime temperatures reaching between 16 and 19.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 10 to 15 knots becoming variable about 10 knots before dawn then becoming northwesterly 15 to 20 knots in the early afternoon.
Seas
Around 1 metre.
1st Swell
Southwesterly 2.5 to 4 metres, decreasing to 2 to 3 metres during the morning.
Weather
Partly cloudy. 80% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marjorie Bay Temperature Statistics View More

September Temperature

Rottnest Island (3km)

  • Lowest 8 September, 2025

    8.2 °C

  • Average September

    14.9 °C

  • Highest 12 September, 2025

    22.4 °C

Climate (2020–Present)

Rottnest Island (3km)

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  • Average Low 2020–2025

    16 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    22.8 °C
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