Perth FAD4 (offshore) Weather Forecast

    • 17
    • 18

    Shower

    • 15
    • 17

    Partly cloudy

    • 14
    • 18

    Partly cloudy

    • 15
    • 19

    Sunny

    • 16
    • 19

    Shower

    • 17
    • 18

    Shower

    • 16
    • 18

    Shower

Today 21 Jul Lower West

Partly cloudy. The chance of morning fog inland. Medium chance of showers. Light winds. Daytime maximum temperatures between 15 and 18.

Perth Coastal Waters

Two Rocks to Dawesville, offshore from Rottnest Island
Wind
Southwesterly 10 to 15 knots turning south to southeasterly during the morning.
Seas
Below 1 metre.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy. 80% chance of showers.
Weather Situation
A ridge is strengthening over the west coast with a weak cold front moving east along the south coast today. The ridge will then move south and strengthen in the wake of the cold front.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Perth FAD4 (offshore) Temperature Statistics View More

July Temperature

Rottnest Island (43km)

  • Lowest 1 July, 2026

    9.9 °C

  • Average July

    15.7 °C

  • Highest 15 July, 2026

    21.8 °C

Climate (2021–2026)

Rottnest Island (43km)

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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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