Cascades Bay Weather Forecast

    • 6
    • 20

    Possible shower

    • 14
    • 22

    Showers increasing

    • 12
    • 20

    Shower or two

    • 9
    • 16

    Partly cloudy

    • 9
    • 16

    Partly cloudy

    • 9
    • 16

    Shower or two

    • 9
    • 17

    Possible shower

Today 29 Sep South East

Partly cloudy. Slight chance of a shower. Winds north to northeasterly 15 to 25 km/h tending north to northwesterly 25 to 40 km/h in the evening.

Frederick Henry Bay and Norfolk Bay Boating

Wind
Northeasterly 10 to 15 knots turning northerly 15 to 25 knots in the evening.
Seas
Below 1 metre.
Weather
Partly cloudy.
Weather Situation
Northerly flow builds over Tasmania today ahead of an approaching trough, forecast to cross Wednesday morning. A broad trough is forecast to cross the state during the day Thursday and then a cold front in the evening. A ridge of high pressure is then expected to approach Tasmania from the west during Friday, concurrently with a trough deepening over Victoria. The trough is forecast to move to the east of Tasmania on Saturday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cascades Bay Temperature Statistics View More

September Temperature

Tasman Island (25km)

  • Lowest 16 September, 2026

    3.4 °C

  • Average September

    10.5 °C

  • Highest 20 September, 2026

    24.5 °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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