Sisters Bay Weather Forecast

    • 4
    • 10

    Shower or two

    • 6
    • 15

    Mostly sunny

    • 6
    • 15

    Sunny

    • 5
    • 15

    Mostly sunny

    • 9
    • 18

    Partly cloudy

    • 11
    • 19

    Shower or two

    • 8
    • 12

    Showers

Today 9 Sep South East

Cloudy. High chance of showers in the far south, medium chance elsewhere. Snow falling above 1000 metres. Winds west to southwesterly 30 to 45 km/h decreasing to 25 to 35 km/h in the late evening.

Lower East Coastal Waters

Wineglass Bay to Tasman Island
Wind
Southwesterly 25 to 30 knots, reaching up to 35 knots offshore during the afternoon and evening.
Seas
2 to 3 metres, increasing to 3 to 4 metres offshore.
1st Swell
Southwesterly 2 to 3 metres inshore, increasing to 4 to 6 metres offshore.
Weather
Cloudy. 70% chance of showers.
Weather Situation
A ridge of high pressure will slowly approach Tasmania from the west on Thursday, with a southwesterly stream over the state to ease during the day. The high pressure centre will move over Victoria on Friday, with high centre expected to lie over the northern Tasman Sea by early Saturday and then remain near stationary during Sunday.
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 4 September, 2026

    6.1 °C

  • Average September

    10.3 °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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