Southport Lagoon Entrance Weather Forecast

    • 9
    • 25

    Partly cloudy

    • 14
    • 22

    Shower or two

    • 8
    • 16

    Cloudy

    • 8
    • 20

    Cloudy

    • 8
    • 22

    Partly cloudy

    • 10
    • 23

    Possible shower developing

    • 11
    • 20

    Shower or two

Today 29 Dec South East

Partly cloudy. Slight chance of a shower in the far south at night. Near zero chance of rain elsewhere. Winds east to northeasterly 20 to 30 km/h tending northwest to northeasterly 15 to 25 km/h in the late evening. Daytime maximum temperatures 21 to 29.

Channel

Wind
Northeasterly about 10 knots increasing to 10 to 15 knots in the middle of the day.
Seas
Below 1 metre.
Weather
Partly cloudy.
Weather Situation
A high pressure system resides over the Tasman Sea today. The high centre is expected to weaken during tomorrow as a trough approaches the west coast and slowly crosses Tasmania during the afternoon and evening. Remnants of the trough will linger about Bass Strait on Wednesday while a new ridge of high pressure moves over Tasmania from the west. This ridge will persist during Thursday as the high centre gradually approaches.
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 25 December, 2025

    5.7 °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

    9.5 °C

  • Average 2020–2025

    12.4 °C

  • Average High 2020–2025

    16.5 °C
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