Southern Harbour Weather Forecast

    • 11
    • 19

    Partly cloudy

    • 9
    • 20

    Shower or two

    • 12
    • 18

    Showers

    • 10
    • 17

    Showers. Windy

    • 8
    • 17

    Showers increasing

    • 9
    • 17

    Showers. Becoming windy

    • 8
    • 18

    Shower or two

Today 5 Aug Perth

Partly cloudy. Slight chance of a shower in the southeast, near zero chance elsewhere. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Variable below 10 knots.
Seas
Below 0.5 metres.
1st Swell
Southwesterly 2 to 3 metres, increasing to 2.5 to 4 metres during the afternoon.
Weather
Partly cloudy.
Weather Situation
A weak ridge lies over the area with a cold front passing to the south. The ridge will weaken on Thursday ahead of the next cold front later Thursday and Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Southern Harbour Temperature Statistics View More

August Temperature

Garden Island (12km)

  • Lowest 2 August, 2026

    9.2 °C

  • Average August

    15 °C

  • Highest 3 August, 2026

    21.2 °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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