Cascades Bay Weather Forecast

    • 9
    • 15

    Partly cloudy

    • 6
    • 20

    Partly cloudy

    • 14
    • 21

    Shower or two

    • 11
    • 19

    Shower or two

    • 9
    • 16

    Partly cloudy

    • 9
    • 17

    Partly cloudy

    • 9
    • 17

    Partly cloudy

Today 28 Sep South East

Partly cloudy. Winds west to southwesterly 15 to 25 km/h tending southeast to southwesterly in the late afternoon then tending northeast to southeasterly 15 to 20 km/h in the late evening. Daytime maximum temperatures between 12 and 17.

Frederick Henry Bay and Norfolk Bay Boating

Wind
West to southwesterly about 10 knots tending southerly 15 to 20 knots in the middle of the day then turning east to southeasterly below 10 knots in the evening.
Seas
Around 1 metre.
Weather
Partly cloudy.
Weather Situation
A high pressure system centred to the west of Tasmania extends a ridge over the state, forecast to move across the state during Monday before moving over the Tasman Sea during Tuesday. Northerly flow is expected to build during Tuesday over Tasmania ahead of an approaching trough, forecast to cross during early Wednesday. A broad trough is forecast to cross the state during Thursday, ahead of an approaching cold front.
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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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