Southern Harbour Weather Forecast

    • 13
    • 25

    Sunny

    • 16
    • 28

    Mostly sunny

    • 19
    • 24

    Sunny

    • 16
    • 21

    Showers

    • 12
    • 19

    Showers easing

    • 13
    • 20

    Partly cloudy

    • 13
    • 21

    Shower or two

Today 15 Sep Perth

Mostly sunny. The chance of a thunderstorm in the northeast in the morning and afternoon. Winds easterly 25 to 35 km/h.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
East to southeasterly 15 to 20 knots tending southerly 10 to 15 knots in the middle of the day then tending east to southeasterly in the evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Sunny.
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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

    16 °C

  • Highest 11 September, 2026

    25 °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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