Alcoa Jetty Weather Forecast

    • 18
    • 30

    Possible storm

    • 18
    • 27

    Partly cloudy

    • 17
    • 26

    Mostly sunny

    • 17
    • 24

    Partly cloudy

    • 16
    • 22

    Shower or two

    • 15
    • 21

    Possible shower

    • 14
    • 21

    Partly cloudy

Today 19 Nov Perth

Partly cloudy. Slight chance of a shower, becoming less likely early this evening. The chance of a thunderstorm, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding. Winds southeasterly 15 to 20 km/h turning easterly 25 to 35 km/h in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 10 to 15 knots turning east to southeasterly in the evening.
Seas
Below 1 metre.
1st Swell
Southwesterly around 1 metre, increasing to 1 to 1.5 metres by early evening.
Weather
Partly cloudy. The chance of a thunderstorm.
Weather Situation
A trough will remain over the area for the next few days, moving inland later Saturday ahead of a high pressure ridge moving pushing in from the west.
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Alcoa Jetty Temperature Statistics View More

November Temperature

Garden Island (10km)

  • Lowest 2 November, 2025

    11.7 °C

  • Average November

    19.4 °C

  • Highest 11 November, 2025

    32.7 °C

Climate (2020–Present)

Garden Island (10km)

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  • Average Low 2020–2025

    15.1 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    23.3 °C
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