Sisters Bay Weather Forecast

    • 9
    • 20

    Shower or two

    • 8
    • 16

    Windy. Partly cloudy

    • 7
    • 18

    Partly cloudy

    • 7
    • 17

    Partly cloudy

    • 9
    • 20

    Sunny

    • 12
    • 21

    Shower or two

    • 9
    • 16

    Showers

Today 8 Dec South East

Partly cloudy. Medium chance of showers, becoming less likely later this evening. The chance of a thunderstorm in the south. Winds westerly 30 to 45 km/h turning northwesterly 25 to 40 km/h in the late evening.

Lower East Coastal Waters

Wineglass Bay to Tasman Island
Wind
North to northwesterly 15 to 20 knots, reaching up to 30 knots offshore in the late afternoon. Winds tending northwest to southwesterly in the evening.
Seas
1 to 1.5 metres, increasing to 2 to 3 metres offshore.
1st Swell
Southwesterly below 1 metre inshore, increasing to 1 to 2 metres offshore.
Weather
Partly cloudy. 50% chance of showers.
Weather Situation
A cold front over Tasmania will move away to the east overnight, bringing a westerly stream that will persist through Tuesday with a high to build over the Bight and extend a ridge to the north of Tasmania. The high centre will slowly approach Tasmania on Wednesday, with the high expected to move over Tasmania on Thursday and slowly away to the east of the state during Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sisters Bay Temperature Statistics View More

December Temperature

Tasman Island (31km)

  • Lowest 7 December, 2025

    5.4 °C

  • Average December

    11.8 °C

  • Highest 4 December, 2025

    24.6 °C

Climate (2020–Present)

Tasman Island (31km)

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  • Average Low 2020–2025

    9.3 °C

  • Average 2020–2025

    11.5 °C

  • Average High 2020–2025

    14.5 °C
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