Marion Bay Weather Forecast

    • 14
    • 21

    Cloudy

    • 14
    • 22

    Cloudy

    • 14
    • 22

    Partly cloudy

    • 14
    • 22

    Cloud clearing

    • 16
    • 27

    Sunny

    • 18
    • 29

    Sunny

    • 19
    • 30

    Partly cloudy

Today 23 Dec Yorke Peninsula

Mostly clear. Winds southerly 15 to 25 km/h.

Investigator Strait Coastal Waters

Wind
South to southwesterly 10 to 15 knots.
Seas
Around 1 metre.
1st Swell
West to southwesterly 1 to 1.5 metres.
Weather
Cloudy.
Weather Situation
A ridge of high pressure persists across South Australia this week as the high centre moves to the south of the Bight on Thursday, continuing eastwards on Friday, to be in the Tasman Sea on Saturday. A trough embedded in the southwesterly flow around the ridge clips the southeast on Wednesday morning.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marion Bay Temperature Statistics View More

December Temperature

Stenhouse Bay (6km)

  • Lowest 3 December, 2025

    9.1 °C

  • Average December

    18.4 °C

  • Highest 18 December, 2025

    39.8 °C

Climate (2020–Present)

Stenhouse Bay (6km)

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  • Average Low 2020–2025

    13.1 °C

  • Average 2020–2025

    16 °C

  • Average High 2020–2025

    20.4 °C
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