Perth FAD6 (offshore) Weather Forecast

    • 15
    • 18

    Sunny

    • 15
    • 18

    Partly cloudy

    • 16
    • 19

    Partly cloudy

    • 18
    • 19

    Shower

    • 17
    • 18

    Shower

    • 15
    • 18

    Cloudy

    • 16
    • 19

    Partly cloudy

Today 23 Jul Lower West

Sunny. Winds easterly 15 to 25 km/h becoming light in the late afternoon. Daytime maximum temperatures between 16 and 19.

Perth Coastal Waters

Two Rocks to Dawesville, offshore from Rottnest Island
Wind
Easterly 15 to 20 knots.
Seas
1 to 1.5 metres, decreasing below 1 metre during the afternoon.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Sunny.
Weather Situation
A high pressure centre over waters southwest of the state extends a ridge over southern WA. The ridge will persist over the region for the remainder of the week as the high pressure centre slowly moves east. A cold front will then cross southwestern parts during late Saturday into Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Perth FAD6 (offshore) Temperature Statistics View More

July Temperature

Rottnest Island (34km)

  • Lowest 1 July, 2026

    9.9 °C

  • Average July

    15.6 °C

  • Highest 15 July, 2026

    21.8 °C

Climate (2021–2026)

Rottnest Island (34km)

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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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