Southport Lagoon Weather Forecast

    • 11
    • 24

    Mostly sunny

    • 14
    • 19

    Rain

    • 11
    • 17

    Rain

    • 12
    • 21

    Shower or two

    • 10
    • 15

    Showers

    • 7
    • 15

    Shower or two

    • 9
    • 17

    Shower or two

Today 22 Mar South East

Mostly sunny. Winds northwest to northeasterly 15 to 25 km/h tending northwest to southwesterly in the late afternoon then tending north to northwesterly in the evening. Overnight temperatures falling to between 9 and 14 with daytime temperatures reaching 22 to 27.

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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Southport Lagoon Temperature Statistics View More

March Temperature

Cape Bruny (18km)

  • Lowest 13 March, 2026

    8.2 °C

  • Average March

    15.3 °C

  • Highest 1 March, 2026

    24.3 °C

Climate (2021–Present)

Cape Bruny (18km)

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  • Average Low 2021–2026

    9.6 °C

  • Average 2021–2026

    12.4 °C

  • Average High 2021–2026

    16.5 °C
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