Perth FAD4 (offshore) Weather Forecast

    • 17
    • 18

    Shower

    • 17
    • 18

    Partly cloudy

    • 17
    • 19

    Shower

    • 17
    • 17

    Shower

    • 15
    • 16

    Shower

    • 16
    • 17

    Shower

    • 16
    • 17

    Shower

Today 4 Aug Lower West

Cloudy. Very high chance of showers, becoming less likely this morning. The chance of a thunderstorm early this morning. Winds northwesterly 15 to 20 km/h turning west to southwesterly early in the morning then becoming light in the late afternoon. Daytime maximum temperatures between 16 and 20.

Perth Coastal Waters

Two Rocks to Dawesville, offshore from Rottnest Island
Wind
West to southwesterly 15 to 20 knots.
Seas
1 to 1.5 metres, decreasing below 1 metre during the morning.
1st Swell
Southwesterly 2 to 3 metres, increasing to 3 to 4 metres during the afternoon.
Weather
Partly cloudy. 60% chance of showers. The chance of a thunderstorm early this morning.
Weather Situation
A trough will move across the South West Land Division and Gascoyne today, ahead of a cold front along the south coast. Another weak front will brush past the southwest coast, as a weak ridge briefly forms over inland southern WA on Wednesday before weakening on Thursday ahead of the next cold front.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Perth FAD4 (offshore) Temperature Statistics View More

August Temperature

Rottnest Island (43km)

  • Lowest 2 August, 2026

    10.4 °C

  • Average August

    14.3 °C

  • Highest 1 August, 2026

    16.7 °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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