Sisters Bay Weather Forecast

    • 12
    • 19

    Shower or two

    • 6
    • 10

    Showers

    • 2
    • 11

    Shower or two

    • 6
    • 13

    Cloudy

    • 7
    • 16

    Mostly sunny

    • 12
    • 18

    Possible shower

    • 11
    • 20

    Shower or two

Today 14 Sep South East

Cloudy. High chance of showers in the south, medium chance elsewhere. Winds northwesterly 25 to 40 km/h turning westerly in the late evening.

Lower East Coastal Waters

Wineglass Bay to Tasman Island
Wind
West to northwesterly 15 to 20 knots, reaching up to 25 knots offshore in the evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres offshore.
1st Swell
Southwesterly below 1 metre inshore, increasing to 1 to 2 metres offshore.
Weather
Partly cloudy. 60% chance of showers later this evening.
Weather Situation
A cold front approaches the state from the west today, crossing Tasmania overnight. A southwesterly flow is expected to develop over Tasmania from Tuesday, as a high in the Bight is forecast to extend a ridge over the state on Wednesday. Flow is expected to turn westerly Thursday as the high moves over Victoria. Strong northwesterly winds are expected on Friday ahead of an approaching trough.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sisters Bay Temperature Statistics View More

September Temperature

Tasman Island (31km)

  • Lowest 9 September, 2026

    4.4 °C

  • Average September

    10.4 °C

  • Highest 1 September, 2026

    15.9 °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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