Southern Harbour Weather Forecast

    • 9
    • 18

    Partly cloudy

    • 8
    • 19

    Partly cloudy

    • 10
    • 19

    Showers increasing

    • 10
    • 19

    Shower or two

    • 10
    • 19

    Partly cloudy

    • 10
    • 19

    Possible shower

    • 10
    • 18

    Showers

Today 3 Jul Perth

Partly cloudy. Winds easterly 15 to 20 km/h becoming light in the late afternoon.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Easterly about 10 knots increasing to 10 to 15 knots in the late evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres.
Weather
Partly cloudy.
Weather Situation
A ridge lies to the south, with a high pressure centre moving into the Bight today. A cold front will move through later Sunday afternoon and evening. A new ridge will rapidly develop to the south on Monday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Southern Harbour Temperature Statistics View More

July Temperature

Garden Island (12km)

  • Lowest 1 July, 2026

    10.4 °C

  • Average July

    14.9 °C

  • Highest 1 July, 2026

    18.2 °C

Climate (2021–2026)

Garden Island (12km)

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  • Average Low 2021–2026

    15.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    23.3 °C
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