Southport Lagoon Weather Forecast

    • 5
    • 12

    Shower or two

    • 7
    • 13

    Shower or two

    • 9
    • 17

    Showers increasing

    • 11
    • 18

    Possible shower

    • 10
    • 22

    Showers

    • 5
    • 12

    Showers

    • 5
    • 14

    Shower or two

Today 16 Sep South East

Cloudy. High chance of showers in the far south, medium chance elsewhere. Snow falling above 600 metres. Possible small hail in the early morning. Winds west to southwesterly 30 to 45 km/h. Overnight temperatures falling to between 1 and 5 with daytime temperatures reaching between 8 and 13.

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Southport Lagoon Temperature Statistics View More

September Temperature

Cape Bruny (18km)

  • Lowest 9 September, 2026

    5.2 °C

  • Average September

    11.3 °C

  • Highest 14 September, 2026

    18.9 °C

Climate (2021–2026)

Cape Bruny (18km)

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  • Average Low 2021–2026

    9.6 °C

  • Average 2021–2026

    12.5 °C

  • Average High 2021–2026

    16.6 °C
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