Marble Bay Weather Forecast

    • 19
    • 20

    Sunny

    • 20
    • 21

    Partly cloudy

    • 20
    • 21

    Partly cloudy

    • 20
    • 20

    Shower

    • 17
    • 18

    Windy

    • 16
    • 17

    Cloudy

    • 17
    • 18

    Cloudy

Today 22 Mar Lower Eyre Peninsula

The chance of morning fog. Sunny afternoon. Light winds becoming east to southeasterly 15 to 25 km/h in the middle of the day. Daytime maximum temperatures around 30.

Central Coastal Waters

Wind
North to northeasterly about 10 knots becoming east to southeasterly in the early afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Sunny.
Weather Situation
A high pressure system over the Tasman sea, extends a ridge over southern SA. A broad trough moves over SA early next week, then a cold front clips the southeast and an upper trough moves up over SA Wednesday and Thursday. A new ridge develops south of the Bight mid next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marble Bay Temperature Statistics View More

March Temperature

Neptune Island (36km)

  • Lowest 9 March, 2026

    14.8 °C

  • Average March

    18.3 °C

  • Highest 10 March, 2026

    24 °C

Climate (2021–Present)

Neptune Island (36km)

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  • Average Low 2021–2026

    14.3 °C

  • Average 2021–2026

    16.2 °C

  • Average High 2021–2026

    18.8 °C
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