Marion Bay Weather Forecast

    • 17
    • 22

    Shower or two. Becoming windy

    • 15
    • 19

    Showers increasing. Windy

    • 13
    • 18

    Shower or two

    • 14
    • 19

    Cloudy

    • 14
    • 20

    Cloudy

    • 14
    • 21

    Partly cloudy

    • 15
    • 21

    Partly cloudy

Today 9 Apr Yorke Peninsula

Partly cloudy. High chance of showers, becoming less likely in the afternoon. The chance of a thunderstorm in the late morning and afternoon. Winds westerly 25 to 35 km/h increasing to 25 to 40 km/h in the late evening. Daytime maximum temperatures in the low to mid 20s.

Investigator Strait Coastal Waters

Wind
Westerly 15 to 25 knots, reaching up to 30 knots in the late evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres during the afternoon.
1st Swell
West to southwesterly around 1 metre, increasing to 1 to 1.5 metres around midday, then increasing to 1 to 2 metres by early evening.
Weather
Partly cloudy. 70% chance of showers. The chance of a thunderstorm in the late morning and afternoon.
Weather Situation
A cold front sweeps across southern SA today. This front will push the inland trough into the far north, exiting the state early Friday. A cooler southwest to southerly flow will gradually moderate in the wake of the front as a strong high pressure system moves in from the west from Friday, establishing in the Bight on Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marion Bay Temperature Statistics View More

April Temperature

Stenhouse Bay (6km)

  • Lowest 8 April, 2026

    11.3 °C

  • Average April

    17.3 °C

  • Highest 6 April, 2026

    25.2 °C

Climate (2021–Present)

Stenhouse Bay (6km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    13.1 °C

  • Average 2021–2026

    16.1 °C

  • Average High 2021–2026

    20.5 °C
Get WillyWeather+ to remove ads