Marum Island Weather Forecast

    • 21
    • 25

    Shower

    • 19
    • 20

    Partly cloudy

    • 18
    • 19

    Partly cloudy

    • 18
    • 19

    Cloudy

    • 18
    • 19

    Partly cloudy

    • 19
    • 21

    Sunny

    • 20
    • 21

    Partly cloudy

Today 31 Mar Lower Eyre Peninsula

Becoming cloudy. Very high chance of showers late this afternoon and evening. Winds northerly 20 to 30 km/h increasing to 25 to 40 km/h in the morning then turning west to northwesterly 25 to 35 km/h in the afternoon. Daytime maximum temperatures in the low 30s.

Spencer Gulf Coastal Waters

Wind
Northerly 15 to 20 knots turning westerly in the late evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
1st Swell
South to southwesterly around 1 metre.
Weather
Mostly sunny day. 60% chance of showers this evening.
Weather Situation
A high pressure system over the Tasman sea extends a weak ridge over SA. A trough over central WA extends over southwest SA, and is forecast to move across the west and south later Tuesday, pushing into the northeast of SA on Wednesday. Another high pressure system is expected to become established south of the Bight late in the week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Marum Island Temperature Statistics View More

March Temperature

Port Lincoln Airport (35km)

  • Lowest 21 March, 2026

    11.4 °C

  • Average March

    18.9 °C

  • Highest 10 March, 2026

    34.6 °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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