Cascades Bay - Shelly Beach Weather Forecast

    • 12
    • 20

    Cloudy

    • 11
    • 18

    Possible drizzle

    • 13
    • 22

    Shower or two

    • 11
    • 19

    Showers increasing

    • 11
    • 19

    Shower or two

    • 10
    • 18

    Shower or two

    • 10
    • 17

    Shower or two. Becoming windy

Today 18 Dec South East

Cloudy. Medium chance of drizzle. Winds southeasterly 20 to 30 km/h.

Frederick Henry Bay and Norfolk Bay Boating

Wind
Southeasterly 10 to 15 knots.
Seas
Around 1 metre.
Weather
Cloudy.
Weather Situation
A trough clears the northeast of Tasmania this evening, as weak ridge moves to the south, persisting during Friday. A broad area of low pressure is forecast to approach from the west late Friday, moving over the state on Saturday. A second, more intense, low pressure system is then forecast to move over eastern Tasmania late Sunday. The low is expected to clear to the east during Monday morning, with a westerly flow to develop behind it.
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  • Temperature Forecast Bureau of Meteorology

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Cascades Bay - Shelly Beach Temperature Statistics View More

December Temperature

Tasman Island (24km)

  • Lowest 7 December, 2025

    5.4 °C

  • Average December

    12.2 °C

  • Highest 4 December, 2025

    24.6 °C

Climate (2020–Present)

Tasman Island (24km)

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  • Average Low 2020–2025

    9.3 °C

  • Average 2020–2025

    11.5 °C

  • Average High 2020–2025

    14.5 °C
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