Sisters Bay Weather Forecast

    • 14
    • 23

    Showers increasing

    • 14
    • 22

    Partly cloudy

    • 10
    • 24

    Mostly sunny

    • 17
    • 26

    Shower or two

    • 15
    • 20

    Showers

    • 9
    • 13

    Showers

    • 6
    • 12

    Shower or two

Today 20 Oct South East

Partly cloudy. High chance of showers, most likely during this afternoon and early evening. The chance of a thunderstorm during this afternoon and early evening, possibly severe with heavy rain which may lead to flash flooding. Winds north to northwesterly 25 to 40 km/h tending west to northwesterly 25 to 35 km/h in the middle of the day then tending northwest to southwesterly 15 to 25 km/h in the evening. Daytime maximum temperatures 22 to 27.

Lower East Coastal Waters

Wineglass Bay to Tasman Island
Wind
Northerly 15 to 25 knots.
Seas
1.5 to 2 metres.
1st Swell
Southwesterly below 1 metre inshore, increasing to 1 to 2 metres offshore.
Weather
Partly cloudy. The chance of a thunderstorm inshore during this afternoon and early evening.
Weather Situation
A blocking high over the Tasman Sea directs a warm northwesterly flow over Tasmania this week. A weak trough is approaching from the west, forecast to move over the state today and tomorrow. Northwesterly winds are forecast to increase on Thursday, ahead of a cold front to move over Tasmania on Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sisters Bay Temperature Statistics View More

October Temperature

Tasman Island (31 km)

  • Lowest 13 October, 2026

    4 °C

  • Average October

    11.3 °C

  • Highest 18 October, 2026

    20.1 °C

Climate (2021–2026)

Tasman Island (31 km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    11.6 °C

  • Average High 2021–2026

    14.7 °C
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