Southport Lagoon Weather Forecast

    • 4
    • 16

    Shower or two

    • 5
    • 16

    Showers increasing

    • 4
    • 11

    Showers

    • 5
    • 13

    Showers

    • 4
    • 12

    Showers

    • 4
    • 13

    Shower or two

    • 6
    • 14

    Shower or two

Today 18 Sep South East

Partly cloudy. High chance of showers in the far south, medium chance elsewhere. Winds north to northwesterly 25 to 40 km/h. Daytime maximum temperatures between 11 and 17.

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  • Temperature Forecast Bureau of Meteorology

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Southport Lagoon Temperature Statistics View More

September Temperature

Cape Bruny (18km)

  • Lowest 6 September, 2025

    2.3 °C

  • Average September

    10.2 °C

  • Highest 15 September, 2025

    22.4 °C

Climate (2020–Present)

Cape Bruny (18km)

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  • Average Low 2020–2025

    9.6 °C

  • Average 2020–2025

    12.5 °C

  • Average High 2020–2025

    16.6 °C
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