Cascades Bay Weather Forecast

    • 7
    • 12

    Partly cloudy

    • 6
    • 13

    Shower or two

    • 8
    • 13

    Shower or two

    • 6
    • 13

    Partly cloudy

    • 6
    • 14

    Partly cloudy

    • 9
    • 15

    Showers increasing

    • 8
    • 13

    Showers

Today 4 Aug South East

Partly cloudy. Slight chance of a shower, becoming less likely later this evening with possible small hail in the far south. Snow possible above 600 metres. Light winds.

Frederick Henry Bay and Norfolk Bay Boating

Wind
Variable below 10 knots.
Seas
Below 0.5 metres.
Weather
Partly cloudy.
Weather Situation
A broad area of low pressure over the east of Tasmania is slowly moving into the Tasman Sea. A ridge of high pressure will develop over Tasmania on Wednesday, ahead of a weak cold front expected to cross the state on Thursday. The ridge of high pressure will redevelop over Tasmania on Friday before the airstream tends northwesterly ahead of an approaching cold front on Saturday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cascades Bay Temperature Statistics View More

August Temperature

Tasman Island (25km)

  • Lowest 2 August, 2026

    7.6 °C

  • Average August

    10.3 °C

  • Highest 1 August, 2026

    13.7 °C

Climate (2021–2026)

Tasman Island (25km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    11.5 °C

  • Average High 2021–2026

    14.6 °C
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