Southport Lagoon Entrance Weather Forecast

    • 8
    • 20

    Cloud clearing

    • 7
    • 23

    Mostly sunny

    • 11
    • 19

    Shower or two

    • 8
    • 14

    Showers

    • 6
    • 13

    Showers

    • 7
    • 19

    Cloudy

    • 8
    • 23

    Mostly sunny

Today 11 Dec South East

Cloud clearing. Winds northwest to southwesterly 15 to 25 km/h tending southeast to southwesterly 15 to 20 km/h in the middle of the day then tending northeast to southeasterly 15 to 25 km/h in the early afternoon. Overnight temperatures falling to between 4 and 9 with daytime temperatures reaching between 17 and 22.

Channel

Wind
West to northwesterly about 10 knots tending south to southeasterly 15 to 20 knots in the morning then becoming variable about 10 knots in the evening.
Seas
Below 0.5 metres, increasing to around 1 metre during the morning.
Weather
Cloud clearing.
Weather Situation
A high pressure system is expected to move over the state today and continue moving eastwards over the Tasman Sea during Friday. A cold front is then forecast to cross the state during Saturday, ahead of a secondary stronger cold front to cross from the west during Sunday, clearing to the east of Tasmania later.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Southport Lagoon Entrance Temperature Statistics View More

December Temperature

Cape Bruny (13km)

  • Lowest 7 December, 2025

    6.9 °C

  • Average December

    12.9 °C

  • Highest 4 December, 2025

    24.6 °C

Climate (2020–Present)

Cape Bruny (13km)

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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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