Sisters Bay Weather Forecast
- 5
- 11
Mostly clear
- 6
- 11
Sunny
- 7
- 10
Shower or two
- 6
- 11
Showers
- 5
- 9
Showers
- 6
- 12
Partly cloudy
- 7
- 12
Partly cloudy
Today 10 Jul South East
Clear. Winds north to northwesterly 15 to 20 km/h.
Lower East Coastal Waters
Wineglass Bay to Tasman Island- Wind
- North to northwesterly 10 to 15 knots, reaching up to 20 knots offshore.
- Seas
- Around 1 metre.
- 1st Swell
- Southwesterly around 1 metre inshore, increasing to 1.5 to 2 metres offshore.
- Weather
- Mostly clear.
- Weather Situation
- A high pressure centre lies to the east of Tasmania and extends a ridge over southeastern Australia. The high will move away to the east this evening and direct a northerly airstream over the state. The airstream will then strengthen during Saturday as a series of cold fronts slowly approach from the west. The first front is forecast to cross Tasmania late Saturday, with a fresh westerly airstream to follow during Sunday. A second cold front embedded in the strong westerly flow is expected to cross during Monday, bringing a much colder airstream to the state. Another cold front is then expected cross during Wednesday, bringing a fresh southwesterly airstream to the state.
Sisters Bay Temperature Statistics View More
July Temperature
Tasman Island (31km)
Lowest 4 July, 2026
3.9 °CAverage July
8.8 °CHighest 1 July, 2026
15.3 °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