Marion Bay Weather Forecast

    • 8
    • 17

    Partly cloudy

    • 10
    • 15

    Rain

    • 11
    • 16

    Shower or two

    • 10
    • 17

    Cloudy

    • 9
    • 18

    Sunny

    • 11
    • 19

    Possible shower

    • 11
    • 19

    Mostly sunny

Today 23 Aug Yorke Peninsula

Partly cloudy. Winds northeasterly 15 to 20 km/h.

Investigator Strait Coastal Waters

Wind
Northeasterly below 10 knots.
Seas
Below 0.5 metres.
1st Swell
West to southwesterly around 1 metre, increasing to 1 to 1.5 metres inshore.
Weather
Partly cloudy.
Weather Situation
A high pressure system centred over the Tasman Sea extends a ridge over eastern SA, while a low pressure system and associated trough move into the far west. The low will move across the state on Monday and out over the eastern states by late Tuesday, as another high moves in from the west to be over SA on Wednesday. A second trough approaches the southwest during Thursday afternoon.
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  • Temperature Forecast Bureau of Meteorology

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Marion Bay Temperature Statistics View More

August Temperature

Stenhouse Bay (6km)

  • Lowest 1 August, 2026

    4.5 °C
  • Average August

    12.7 °C
  • Highest 18 August, 2026

    19.9 °C

Climate (2021–2026)

Stenhouse Bay (6km)

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  • Average Low 2021–2026

    13.2 °C
  • Average 2021–2026

    16.1 °C
  • Average High 2021–2026

    20.5 °C
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