Southern Harbour Weather Forecast

    • 14
    • 22

    Morning fog. Shower or two

    • 11
    • 18

    Shower or two

    • 9
    • 19

    Partly cloudy

    • 11
    • 21

    Partly cloudy

    • 11
    • 22

    Mostly sunny

    • 11
    • 22

    Sunny

    • 11
    • 23

    Sunny

Today 30 Apr Perth

Partly cloudy. Patchy fog about the southern suburbs early this morning. Slight chance of a shower, most likely during this afternoon and evening. Light winds becoming south to southwesterly 20 to 30 km/h in the morning then becoming light in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 15 to 25 knots.
Seas
Below 1 metre, increasing to 1 to 2 metres around midday.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A south to southwesterly flow will gradually tend south to southeasterly over the Local Waters during the weekend as a ridge develops over the west coast.
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  • Temperature Forecast Bureau of Meteorology

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Southern Harbour Temperature Statistics View More

April Temperature

Garden Island (12km)

  • Lowest 22 April, 2026

    11.7 °C

  • Average April

    18.7 °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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