Southern Harbour Weather Forecast

    • 11
    • 22

    Clear

    • 9
    • 22

    Sunny

    • 12
    • 22

    Mostly sunny

    • 13
    • 24

    Mostly sunny

    • 15
    • 20

    Showers easing

    • 14
    • 21

    Showers

    • 12
    • 21

    Mostly sunny

Today 8 Sep Perth

Mostly sunny. Winds east to southeasterly 20 to 30 km/h.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southeasterly 15 to 20 knots tending easterly in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Sunny.
Weather Situation
A high in the Bight is directing southeasterly winds across the local waters. Winds tending easterly on Wednesday as the high drifts eastwards, while a west coast trough may develop on Thursday, ahead of the next cold front crossing the southern districts during the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Southern Harbour Temperature Statistics View More

September Temperature

Garden Island (12km)

  • Lowest 1 September, 2026

    10.2 °C

  • Average September

    15.2 °C

  • Highest 5 September, 2026

    18.7 °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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