Marion Bay Weather Forecast

    • 10
    • 16

    Rain increasing. Windy

    • 8
    • 14

    Showers. Wind easing

    • 8
    • 16

    Shower or two

    • 8
    • 15

    Shower or two

    • 7
    • 13

    Showers

    • 7
    • 15

    Showers

    • 9
    • 15

    Showers. Becoming windy

Today 21 Jul Yorke Peninsula

Mostly sunny morning. Very high chance of showers in the afternoon and evening. Damaging winds possible. Winds northerly 30 to 45 km/h increasing to 35 to 55 km/h in the morning then tending northwesterly 35 to 50 km/h in the late evening. Overnight temperatures falling to between 7 and 10 with daytime temperatures reaching around 17.

Investigator Strait Coastal Waters

Wind
Northerly 15 to 25 knots increasing to 20 to 30 knots in the early morning. Winds reaching up to 35 knots in the evening.
Seas
1 to 2 metres, increasing to 2 to 3 metres during the morning.
1st Swell
West to southwesterly 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres around midday.
Weather
Becoming cloudy. 95% chance of rain.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marion Bay Temperature Statistics View More

July Temperature

Stenhouse Bay (6km)

  • Lowest 2 July, 2025

    6.5 °C

  • Average July

    12.3 °C

  • Highest 3 July, 2025

    18.5 °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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