Marion Bay Weather Forecast

    • 11
    • 20

    Sunny

    • 14
    • 26

    Sunny

    • 15
    • 21

    Showers. Becoming windy

    • 13
    • 19

    Wind easing. Partly cloudy

    • 12
    • 24

    Late shower or two

    • 13
    • 18

    Shower or two

    • 10
    • 16

    Showers

Today 7 Oct Yorke Peninsula

Sunny. Winds east to northeasterly 15 to 25 km/h becoming light in the early afternoon then becoming easterly 15 to 20 km/h in the late evening. Daytime maximum temperatures in the low to mid 20s.

Investigator Strait Coastal Waters

Wind
Northeasterly 10 to 15 knots, reaching up to 20 knots through the Backstairs Passage in the late morning. Winds turning easterly in the early afternoon.
Seas
Around 1 metre.
1st Swell
West to southwesterly 1 to 1.5 metres.
Weather
Sunny.
Weather Situation
A high pressure system located to the south of SA will maintain a ridge over the state as it moves into the Tasman Sea from late Wednesday. A trough ahead of a strong cold front is then expected move over western SA on Thursday, before the front tracks east across the rest of SA on Friday and early Saturday. A high will quickly move southeast across the state on Saturday, ahead of another front forecast to move across on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marion Bay Temperature Statistics View More

October Temperature

Stenhouse Bay (6 km)

  • Lowest 5 October, 2026

    11.7 °C

  • Average October

    14.8 °C

  • Highest 1 October, 2026

    21 °C

Climate (2021–2026)

Stenhouse Bay (6 km)

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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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