Southport Lagoon Weather Forecast

    • 9
    • 22

    Mostly sunny

    • 10
    • 26

    Mostly sunny

    • 15
    • 22

    Shower or two

    • 9
    • 17

    Cloudy

    • 7
    • 21

    Partly cloudy

    • 9
    • 21

    Partly cloudy

    • 10
    • 22

    Partly cloudy

Today 28 Dec South East

Sunny. Winds northwest to northeasterly 15 to 20 km/h tending northeast to southeasterly 15 to 25 km/h in the middle of the day then tending north to northeasterly 15 to 20 km/h in the late evening. Daytime maximum temperatures between 19 and 26.

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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Southport Lagoon Temperature Statistics View More

December Temperature

Cape Bruny (18km)

  • Lowest 25 December, 2025

    5.7 °C

  • Average December

    12.8 °C

  • Highest 4 December, 2025

    24.6 °C

Climate (2020–Present)

Cape Bruny (18km)

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  • Average Low 2020–2025

    9.5 °C

  • Average 2020–2025

    12.4 °C

  • Average High 2020–2025

    16.5 °C
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