Marion Bay Weather Forecast

    • 16
    • 26

    Partly cloudy

    • 14
    • 20

    Showers

    • 13
    • 19

    Showers easing

    • 11
    • 17

    Mostly sunny

    • 11
    • 17

    Partly cloudy

    • 11
    • 19

    Partly cloudy

    • 12
    • 19

    Mostly sunny

Today 29 Sep Yorke Peninsula

Partly cloudy. Winds north to northeasterly 25 to 40 km/h becoming northerly 30 to 45 km/h in the morning then shifting south to southwesterly 15 to 20 km/h in the evening. Overnight temperatures falling to around 16 with daytime temperatures reaching 27 to 34.

Investigator Strait Coastal Waters

Wind
Northeasterly 15 to 20 knots, reaching up to 25 knots through the Backstairs Passage during the morning. Winds tending northerly in the morning then becoming variable about 10 knots in the evening.
Seas
1 to 1.5 metres, decreasing to 1 metre by early evening.
1st Swell
West to southwesterly below 1 metre.
Weather
Partly cloudy.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marion Bay Temperature Statistics View More

September Temperature

Stenhouse Bay (6km)

  • Lowest 17 September, 2026

    6.7 °C

  • Average September

    14.6 °C

  • Highest 24 September, 2026

    28.3 °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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