Southern Harbour Weather Forecast

    • 7
    • 19

    Mostly sunny

    • 10
    • 21

    Sunny day. Late showers

    • 13
    • 19

    Showers easing

    • 11
    • 19

    Partly cloudy

    • 10
    • 19

    Showers increasing

    • 12
    • 18

    Showers

    • 11
    • 17

    Showers easing

Today 2 Aug Perth

Mostly sunny. Winds east to northeasterly 15 to 25 km/h becoming light in the early afternoon then becoming easterly 15 to 20 km/h in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
East to northeasterly 10 to 15 knots decreasing to about 10 knots in the late afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Mostly sunny.
Weather Situation
A ridge is moving east today. A trough will approach on Monday, before moving east on Tuesday, followed by a cold front along the southwest coast. A weak ridge will return on Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Southern Harbour Temperature Statistics View More

August Temperature

Garden Island (12km)

  • Lowest 1 August, 2026

    13.1 °C

  • Average August

    14.8 °C

  • Highest

    –

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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