Perth FAD3 (offshore) Weather Forecast

    • 18
    • 20

    Shower

    • 19
    • 19

    Shower

    • 16
    • 18

    Partly cloudy

    • 16
    • 18

    Partly cloudy

    • 16
    • 18

    Partly cloudy

    • 16
    • 20

    Sunny

    • 17
    • 21

    Sunny

Today 9 Jul Perth

Partly cloudy. High chance of showers in the southwest, medium chance elsewhere. Light winds.

Perth Coastal Waters

Two Rocks to Dawesville, offshore from Rottnest Island
Wind
Northwesterly 10 to 15 knots turning west to southwesterly in the late afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy. 80% chance of showers.
Weather Situation
A weak ridge over southern parts moves east ahead of a weak cold front brushing the south coast later today and into Friday. A new ridge develops along the south coast on Saturday, persisting into next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Perth FAD3 (offshore) Temperature Statistics View More

July Temperature

Rottnest Island (46km)

  • Lowest 1 July, 2026

    9.9 °C

  • Average July

    15.1 °C

  • Highest 5 July, 2026

    18.9 °C

Climate (2021–2026)

Rottnest Island (46km)

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  • Average Low 2021–2026

    16.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    22.8 °C
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