Perth FAD2 (offshore) Weather Forecast

    • 17
    • 18

    Shower

    • 16
    • 18

    Partly cloudy

    • 17
    • 19

    Partly cloudy

    • 17
    • 18

    Storm

    • 15
    • 18

    Shower

    • 14
    • 18

    Partly cloudy

    • 15
    • 19

    Sunny

Today 23 Aug Lower West

Partly cloudy. Medium chance of showers, becoming less likely later this evening. Winds southwesterly 15 to 20 km/h becoming light in the evening.

Perth Coastal Waters

Two Rocks to Dawesville, offshore from Rottnest Island
Wind
Southwesterly 10 to 15 knots turning southerly in the late afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A trough about the Eucla coast is moving east and will move across the border tonight as a weak front brushes past the southwest corner of the state. In its wake, a ridge will extend across the southern half of the state from Sunday night into Monday. The ridge will move east on Tuesday, ahead of the next cold front approaching from the west. The cold front will move east across southern WA on Wednesday and Thursday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Perth FAD2 (offshore) Temperature Statistics View More

August Temperature

Rottnest Island (48km)

  • Lowest 9 August, 2026

    7.4 °C

  • Average August

    15.4 °C

  • Highest 16 August, 2026

    23.2 °C

Climate (2021–2026)

Rottnest Island (48km)

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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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