Perth FAD4 (offshore) Weather Forecast

    • 21
    • 23

    Partly cloudy

    • 21
    • 23

    Partly cloudy

    • 20
    • 22

    Partly cloudy

    • 20
    • 21

    Partly cloudy

    • 20
    • 20

    Partly cloudy

    • 19
    • 20

    Windy

    • 17
    • 19

    Partly cloudy

Today 18 Nov Lower West

Partly cloudy. Slight chance of a shower. The chance of a thunderstorm in the afternoon and early evening, possibly severe in the north with damaging winds, large hail and heavy rain which may lead to flash flooding. Winds northeast to southeasterly 15 to 25 km/h. Daytime maximum temperatures in the low to mid 30s.

Perth Coastal Waters

Two Rocks to Dawesville, offshore from Rottnest Island
Wind
South to southeasterly about 10 knots increasing to 10 to 15 knots in the late afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres.
Weather
Partly cloudy.
Weather Situation
A ridge of high pressure extending over southern WA is weakening, contracting to the south coast on Wednesday and moving away. Meanwhile, a trough located offshore is deepening associated with a low pressure system. The trough and low pressure system will move across the west coast later Wednesday and further inland on Thursday, lingering into the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Perth FAD4 (offshore) Temperature Statistics View More

November Temperature

Rottnest Island (43km)

  • Lowest 2 November, 2025

    11.9 °C

  • Average November

    18.9 °C

  • Highest 11 November, 2025

    31.5 °C

Climate (2020–Present)

Rottnest Island (43km)

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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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