Southern Harbour Weather Forecast

    • 17
    • 24

    Sunny

    • 18
    • 27

    Sunny

    • 18
    • 25

    Partly cloudy

    • 17
    • 25

    Sunny

    • 17
    • 23

    Shower or two

    • 17
    • 22

    Showers easing

    • 14
    • 21

    Partly cloudy

Today 13 Apr Perth

Mostly sunny. The chance of a thunderstorm in the northeast this afternoon. Light winds becoming south to southwesterly 15 to 20 km/h in the morning then tending south to southeasterly in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 10 to 15 knots.
Seas
Around 1 metre.
1st Swell
Southwesterly around 1 metre, increasing to 1 to 1.5 metres around midday.
Weather
Sunny.
Weather Situation
A ridge extends over the Local Waters, while a a west coast trough has moved onshore. A weak cold front will brush the southwest of the State late tonight while another ridge develops over the Local Waters in its wake. The west coast trough will remain near Local Waters throughout the first half of the week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Southern Harbour Temperature Statistics View More

April Temperature

Garden Island (12km)

  • Lowest 8 April, 2026

    13.1 °C

  • Average April

    19.2 °C

  • Highest 3 April, 2026

    28.7 °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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