Marum Island Weather Forecast

    • 18
    • 24

    Partly cloudy

    • 19
    • 20

    Partly cloudy

    • 18
    • 22

    Partly cloudy

    • 20
    • 22

    Partly cloudy

    • 20
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    Shower

    • 18
    • 19

    Partly cloudy

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    Partly cloudy

Today 21 Apr Lower Eyre Peninsula

Mostly sunny. Winds northeasterly 15 to 20 km/h turning northwesterly 25 to 40 km/h in the middle of the day then tending northerly 20 to 30 km/h in the late afternoon. Daytime maximum temperatures in the low 30s.

Spencer Gulf Coastal Waters

Wind
Northeasterly 10 to 15 knots turning northerly during the day. Winds reaching up to 20 knots near the Yorke Peninsula coast during the day.
Seas
Around 1 metre, increasing to 1 to 1.5 metres near the Yorke Peninsula coast around midday.
1st Swell
South to southwesterly below 1 metre, increasing to around 1 metre south of Cowell to Wallaroo.
Weather
Mostly sunny.
Weather Situation
A strong high pressure system east of Tasmania will maintain a ridge over SA this week. A cold front is expected to weaken and slide across western and southern coasts during today and Wednesday. A second cold front may pass over the south again on Saturday with a high pressure system to follow over waters south of the Bight on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marum Island Temperature Statistics View More

April Temperature

Port Lincoln Airport (35km)

  • Lowest 14 April, 2026

    8.8 °C

  • Average April

    16.8 °C

  • Highest 16 April, 2026

    26.7 °C

Climate (2021–Present)

Port Lincoln Airport (35km)

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  • Average Low 2021–2026

    11.4 °C

  • Average 2021–2026

    15.8 °C

  • Average High 2021–2026

    21.3 °C
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