Southern Harbour Weather Forecast

    • 11
    • 23

    Sunny

    • 13
    • 21

    Showers. Becoming windy

    • 11
    • 18

    Possible shower

    • 12
    • 19

    Showers easing

    • 9
    • 19

    Possible shower

    • 9
    • 19

    Cloud clearing

    • 8
    • 21

    Mostly sunny

Today 16 Aug Perth

Sunny. Winds easterly 15 to 20 km/h turning northeasterly 15 to 25 km/h early in the morning.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Northeasterly 15 to 20 knots.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing below 1 metre during the afternoon.
1st Swell
West to southwesterly 1.5 to 2 metres.
Weather
Sunny.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Southern Harbour Temperature Statistics View More

August Temperature

Garden Island (12km)

  • Lowest 11 August, 2026

    7.7 °C

  • Average August

    14.3 °C

  • Highest 3 August, 2026

    21.2 °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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