Sisters Bay Weather Forecast

    • 8
    • 12

    Showers increasing

    • 6
    • 10

    Showers

    • 5
    • 13

    Mostly sunny

    • 7
    • 12

    Shower or two

    • 6
    • 13

    Mostly sunny

    • 8
    • 14

    Mostly sunny

    • 8
    • 16

    Mostly sunny

Today 25 Aug South East

Cloudy. Very high chance of rain, most likely in the afternoon and evening. Light winds becoming west to northwesterly 15 to 20 km/h in the late evening. Daytime maximum temperatures between 10 and 15.

Lower East Coastal Waters

Wineglass Bay to Tasman Island
Wind
Variable about 10 knots becoming west to northwesterly 10 to 15 knots in the evening.
Seas
Below 1 metre.
1st Swell
South to southwesterly 1 to 1.5 metres inshore, increasing to 2 to 3 metres offshore.
Weather
Cloudy. 90% chance of showers.
Weather Situation
A low pressure system over Victoria on Tuesday morning is expected to broaden and move south over Tasmania during the day, before moving away to the east on Wednesday morning. A high pressure system over South Australia is expected to extend a ridge over Tasmania later Wednesday, before moving to north of the state on Thursday. A cold front is expected to approach the southwest late Thursday, crossing during Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sisters Bay Temperature Statistics View More

August Temperature

Tasman Island (31km)

  • Lowest 23 August, 2026

    6 °C

  • Average August

    10 °C

  • Highest 20 August, 2026

    17.1 °C

Climate (2021–2026)

Tasman Island (31km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    11.6 °C

  • Average High 2021–2026

    14.6 °C
Get WillyWeather+ to remove ads