Sisters Bay Weather Forecast
- 5
- 11
Shower or two
- 5
- 11
Shower or two
- 4
- 11
Mostly sunny
- 5
- 12
Partly cloudy
- 9
- 13
Showers increasing
- 9
- 12
Showers
- 7
- 12
Shower or two
Today 5 Aug South East
Partly cloudy. Light winds becoming northwest to southwesterly 15 to 20 km/h in the late evening.
Lower East Coastal Waters
Wineglass Bay to Tasman Island- Wind
- Southerly 15 to 20 knots turning southwesterly in the evening. Winds reaching up to 25 knots offshore in the late evening.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres by early evening.
- 1st Swell
- Southwesterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
- Weather
- Partly cloudy. 70% chance of showers.
- Weather Situation
- A broad area of low pressure lies to the east of Tasmania and will continue to slowly moves eastwards during today and tomorrow. A high pressure centre over New South Wales extends a ridge toward Tasmania today as a weak cold front approaches from the west. The front is expected to cross the state on Thursday with a ridge of high pressure to redevelop during Friday. The airstream will then tend northwesterly across Tasmania during Saturday as a strong cold front approaches from the west, expected to cross later Sunday.
Sisters Bay Temperature Statistics View More
August Temperature
Tasman Island (31km)
Lowest 4 August, 2026
6.9 °CAverage August
9.6 °CHighest 1 August, 2026
13.7 °C
Climate (2021–2026)
Tasman Island (31km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
11.5 °CAverage High 2021–2026
14.6 °C