Alcoa Jetty Weather Forecast

    • 9
    • 19

    Shower or two developing

    • 15
    • 19

    Showers

    • 9
    • 16

    Possible shower

    • 9
    • 17

    Possible shower

    • 11
    • 17

    Possible shower

    • 12
    • 19

    Shower or two

    • 11
    • 17

    Shower or two

Today 11 Jul Perth

Mostly sunny day. Medium chance of showers, most likely in the evening. Winds north to northeasterly 15 to 20 km/h tending north to northwesterly 15 to 25 km/h in the late morning and early afternoon.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Northerly 20 to 25 knots turning northwesterly in the early afternoon. Winds reaching up to 30 knots at times.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres around midday.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Partly cloudy. 70% chance of showers.
Weather Situation
A ridge to the north is moving away as a cold front approaches from the west. The cold front will move through the local waters on Saturday morning followed by a new ridge on Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Alcoa Jetty Temperature Statistics View More

July Temperature

Garden Island (10km)

  • Lowest 10 July, 2025

    9.3 °C

  • Average July

    15.1 °C

  • Highest 1 July, 2025

    21.3 °C

Climate (2020–Present)

Garden Island (10km)

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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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