Southport Lagoon Weather Forecast

    • 9
    • 14

    Shower or two. Becoming windy

    • 6
    • 14

    Shower or two

    • 9
    • 19

    Cloudy

    • 7
    • 26

    Mostly sunny

    • 11
    • 23

    Shower or two

    • 9
    • 17

    Possible shower

    • 9
    • 19

    Shower or two

Today 14 Dec South East

Cloudy. High chance of showers. Snow falling above 800 metres. The chance of a thunderstorm in the far south in the afternoon. Possible small hail. Winds westerly 35 to 55 km/h. Daytime maximum temperatures between 9 and 17.

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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Southport Lagoon Temperature Statistics View More

December Temperature

Cape Bruny (18km)

  • Lowest 7 December, 2025

    6.9 °C

  • Average December

    13.2 °C

  • Highest 4 December, 2025

    24.6 °C

Climate (2020–Present)

Cape Bruny (18km)

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  • Average Low 2020–2025

    9.6 °C

  • Average 2020–2025

    12.4 °C

  • Average High 2020–2025

    16.5 °C
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