Southern Harbour Weather Forecast

    • 18
    • 22

    Showers

    • 17
    • 21

    Possible shower

    • 14
    • 22

    Partly cloudy

    • 15
    • 25

    Sunny

    • 17
    • 26

    Partly cloudy

    • 19
    • 24

    Partly cloudy

    • 18
    • 24

    Partly cloudy

Today 30 Mar Perth

Partly cloudy. The chance of fog in the northeast early this morning. High chance of showers, most likely during the morning and afternoon. Light winds becoming westerly 20 to 30 km/h in the morning.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
West to southwesterly about 10 knots increasing to 15 to 20 knots in the morning.
Seas
Below 1 metre, increasing to 1 to 1.5 metres around midday.
1st Swell
Southwesterly around 1 metre, increasing to 1 to 1.5 metres around midday, then tending west to southwesterly 1 to 1.5 metres during the afternoon.
Weather
Partly cloudy. 70% chance of showers.
Weather Situation
A series of cold fronts will move across the south coast, maintaining a showery westerly flow across the local waters until Tuesday. A new ridge will extend over southern WA from later Tuesday, before sinking to the south coast on Thursday as a trough develops over inland South West Land Division and inland Gascoyne.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Southern Harbour Temperature Statistics View More

March Temperature

Garden Island (12km)

  • Lowest 1 March, 2026

    14.3 °C

  • Average March

    22.2 °C

  • Highest 18 March, 2026

    36.6 °C

Climate (2021–Present)

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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