Sisters Bay Weather Forecast

    • 12
    • 18

    Partly cloudy

    • 5
    • 11

    Showers

    • 4
    • 11

    Cloudy

    • 4
    • 13

    Partly cloudy

    • 5
    • 18

    Partly cloudy

    • 13
    • 19

    Shower or two

    • 10
    • 18

    Shower or two

Today 25 Sep South East

Partly cloudy. High chance of showers in the far south, medium chance elsewhere. Winds northwesterly 20 to 30 km/h turning westerly in the morning. Daytime maximum temperatures between 15 and 21.

Lower East Coastal Waters

Wineglass Bay to Tasman Island
Wind
North to northwesterly 15 to 20 knots shifting south to southwesterly in the early afternoon. Winds reaching up to 25 knots offshore during the afternoon and evening.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres by early evening.
1st Swell
South to southwesterly around 1 metre inshore, increasing to 1 to 2 metres offshore.
Weather
Partly cloudy.
Weather Situation
A weak trough moves over the state today ahead of a cold front which crosses early tomorrow morning. A high pressure system is then forecast to extend a ridge over Tasmania from the southwest during Saturday, before moving across the state on Sunday and Monday.
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 16 September, 2026

    3.4 °C

  • Average September

    10.6 °C

  • Highest 20 September, 2026

    24.5 °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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