Sisters Bay Weather Forecast

    • 6
    • 12

    Partly cloudy

    • 7
    • 14

    Mostly sunny

    • 8
    • 14

    Sunny

    • 7
    • 14

    Partly cloudy

    • 9
    • 16

    Showers increasing

    • 7
    • 13

    Possible shower

    • 8
    • 14

    Shower or two

Today 28 Aug South East

Cloudy. Medium chance of showers in the far south, near zero chance elsewhere. Winds westerly 20 to 30 km/h. Daytime maximum temperatures between 9 and 15.

Lower East Coastal Waters

Wineglass Bay to Tasman Island
Wind
West to southwesterly 15 to 20 knots, reaching up to 30 knots offshore in the late morning and afternoon.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres offshore.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Partly cloudy.
Weather Situation
An approaching cold front will cross the state on Friday morning. A high pressure system will build south of the Bight on Saturday and extend a ridge to the north of Tasmania, with the high centre to move near Adelaide on Sunday and extend a ridge over Tasmania. The high is expected to move to the north of Tasmania on Monday, with another cold front to move to the south of the Bight.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sisters Bay Temperature Statistics View More

August Temperature

Tasman Island (31km)

  • Lowest 23 August, 2026

    6 °C

  • Average August

    9.9 °C

  • Highest 20 August, 2026

    17.1 °C

Climate (2021–2026)

Tasman Island (31km)

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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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