Big Lagoon Beach Weather Forecast

    • 7
    • 16

    Showers increasing

    • 7
    • 14

    Showers

    • 6
    • 13

    Showers

    • 7
    • 16

    Possible shower

    • 8
    • 20

    Partly cloudy

    • 8
    • 24

    Mostly sunny

    • 11
    • 27

    Partly cloudy

Today 23 Dec South East

Partly cloudy. High chance of showers in the south, medium chance elsewhere. Snow falling above 1000 metres. Possible small hail in the south in the morning and afternoon. Winds westerly 20 to 30 km/h increasing to 30 to 45 km/h in the early morning then tending northwesterly in the evening. Overnight temperatures falling to between 4 and 9 with daytime temperatures reaching between 11 and 17.

South East Coastal Waters

Tasman Island to South East Cape
Wind
Westerly 20 to 30 knots turning northwesterly 25 to 30 knots in the evening. Winds reaching up to 35 knots offshore in the evening.
Seas
1.5 to 2 metres, increasing to 2 to 3 metres during the morning.
1st Swell
Westerly 1.5 to 2.5 metres, increasing to 2.5 to 4 metres during the morning.
Weather
Partly cloudy. 80% chance of showers, with possible small hail in the morning and afternoon.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Big Lagoon Beach Temperature Statistics View More

December Temperature

Cape Bruny (14km)

  • Lowest 15 December, 2025

    5.9 °C

  • Average December

    13.4 °C

  • Highest 4 December, 2025

    24.6 °C

Climate (2020–Present)

Cape Bruny (14km)

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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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