Marion Bay Weather Forecast

    • 12
    • 17

    Showers. Becoming windy

    • 11
    • 16

    Possible shower. Windy

    • 12
    • 22

    Partly cloudy

    • 17
    • 25

    Becoming cloudy

    • 13
    • 19

    Showers

    • 13
    • 20

    Showers

    • 11
    • 17

    Possible shower

Today 26 Sep Yorke Peninsula

Cloudy. Very high chance of showers in the south, medium chance elsewhere. The chance of a thunderstorm in the morning. Winds southeasterly 25 to 35 km/h. Overnight temperatures falling to around 12 with daytime temperatures reaching between 17 and 22.

Investigator Strait Coastal Waters

Wind
Southeasterly 15 to 20 knots increasing to 20 to 25 knots in the middle of the day. Winds reaching up to 30 knots in the late evening.
Seas
Around 1 metre, increasing to 1 to 2 metres during the morning.
1st Swell
West to southwesterly around 1 metre, increasing to 1 to 1.5 metres inshore during the afternoon.
Weather
Cloudy. 95% chance of showers. The chance of a thunderstorm in the morning.
Graph Plots Open in Graphs

  • 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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