Southport Lagoon Weather Forecast

    • 8
    • 19

    Mostly sunny

    • 7
    • 23

    Late showers

    • 11
    • 18

    Shower or two

    • 10
    • 22

    Partly cloudy

    • 14
    • 21

    Showers

    • 10
    • 17

    Shower or two

    • 9
    • 17

    Partly cloudy

Today 21 Apr South East

The chance of morning fog. Mostly sunny afternoon. Light winds becoming northwest to northeasterly 15 to 20 km/h in the early morning then becoming northeasterly 20 to 30 km/h in the middle of the day. Overnight temperatures falling to between 4 and 9 with daytime temperatures reaching between 16 and 21.

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  • Temperature Forecast Bureau of Meteorology

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Southport Lagoon Temperature Statistics View More

April Temperature

Cape Bruny (18km)

  • Lowest 11 April, 2026

    5.6 °C

  • Average April

    12.1 °C

  • Highest 2 April, 2026

    22.2 °C

Climate (2021–Present)

Cape Bruny (18km)

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  • Average Low 2021–2026

    9.5 °C

  • Average 2021–2026

    12.4 °C

  • Average High 2021–2026

    16.5 °C
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