Cascades Bay Weather Forecast

    • 9
    • 14

    Mostly clear

    • 9
    • 15

    Mostly sunny

    • 11
    • 15

    Sunny

    • 9
    • 15

    Partly cloudy

    • 9
    • 17

    Showers increasing

    • 9
    • 15

    Possible shower

    • 10
    • 16

    Shower or two

Today 28 Aug South East

Partly cloudy. Medium chance of showers in the far south, near zero chance elsewhere. Winds westerly 20 to 30 km/h.

Frederick Henry Bay and Norfolk Bay Boating

Wind
West to southwesterly 10 to 15 knots tending west to northwesterly below 10 knots in the evening.
Seas
Below 1 metre.
Weather
Mostly clear.
Weather Situation
A high pressure system south of the Bight will build and begin to extend a ridge to the north of Tasmania from late Friday into the weekend. The high pressure centre is expected to track well north of Tasmania on Monday, then move into the Tasman Sea with a strong cold front approaching from the west, crossing Tasmania on Tuesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cascades Bay Temperature Statistics View More

August Temperature

Tasman Island (25km)

  • Lowest 23 August, 2026

    6 °C

  • Average August

    9.9 °C

  • Highest 20 August, 2026

    17.1 °C

Climate (2021–2026)

Tasman Island (25km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    11.6 °C

  • Average High 2021–2026

    14.6 °C
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