Marjorie Bay Weather Forecast

    • 14
    • 18

    Showers. Windy

    • 11
    • 17

    Possible late shower

    • 13
    • 19

    Showers. Very windy

    • 11
    • 15

    Showers. Very windy

    • 11
    • 16

    Showers. Wind easing

    • 12
    • 17

    Showers. Windy

    • 13
    • 17

    Showers. Wind easing

Today 18 Jul Lower West

Cloudy. High chance of showers, most likely in the morning and afternoon. Winds north to northwesterly 15 to 25 km/h turning west to southwesterly during the morning then tending southeast to southwesterly in the early afternoon. Overnight temperatures falling to between 6 and 11 with daytime temperatures reaching between 15 and 19.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Westerly 15 to 20 knots tending southwesterly in the morning then tending southeast to southwesterly in the middle of the day.
Seas
Below 1 metre, increasing to 1 to 2 metres during the morning.
1st Swell
Southwesterly 2.5 to 3 metres, increasing to 2.5 to 4 metres during the morning.
Weather
Cloudy. 90% chance of showers.
Caution
Large and powerful surf conditions are expected to be hazardous for coastal activities such as swimming, surfing and rock fishing.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marjorie Bay Temperature Statistics View More

July Temperature

Rottnest Island (3km)

  • Lowest 8 July, 2025

    11.2 °C

  • Average July

    15.6 °C

  • Highest 6 July, 2025

    21.7 °C

Climate (2020–Present)

Rottnest Island (3km)

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  • Average Low 2020–2025

    16.1 °C

  • Average 2020–2025

    19 °C

  • Average High 2020–2025

    22.8 °C
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