Mersey Point Weather Forecast

    • 9
    • 17

    Sunny

    • 10
    • 18

    Partly cloudy

    • 10
    • 19

    Sunny morning. Shower or two

    • 15
    • 19

    Showers

    • 11
    • 16

    Shower or two

    • 9
    • 17

    Possible shower

    • 10
    • 18

    Partly cloudy

Today 9 Jul Perth

Sunny. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
South to southeasterly 10 to 15 knots, reaching 15 to 20 knots offshore in the early morning. Winds tending southerly below 10 knots in the late afternoon.
Seas
1 to 1.5 metres, decreasing below 1 metre during the morning.
1st Swell
Southwesterly 2 to 3 metres, decreasing to 1.5 to 2 metres by early evening.
Weather
Sunny.
Weather Situation
A ridge extending from the Indian Ocean will become established southern WA today, with the overall pattern then becoming static. A cold front is expected to cross the southwest of the State on Saturday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mersey Point Temperature Statistics View More

July Temperature

Garden Island (7km)

  • Lowest 8 July, 2025

    9.9 °C

  • Average July

    15.5 °C

  • Highest 1 July, 2025

    21.3 °C

Climate (2020–Present)

Garden Island (7km)

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  • Average Low 2020–2025

    15.2 °C

  • Average 2020–2025

    19 °C

  • Average High 2020–2025

    23.4 °C
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