Sisters Bay Weather Forecast
- 8
- 18
Mostly clear
- 12
- 20
Showers increasing
- 8
- 15
Shower or two
- 7
- 16
Partly cloudy
- 9
- 17
Possible shower
- 11
- 17
Showers increasing
- 8
- 15
Possible shower
Today 30 Oct South East
Mostly clear. Winds southeast to southwesterly 15 to 25 km/h tending northwest to northeasterly 15 to 20 km/h in the late evening.
Lower East Coastal Waters
Wineglass Bay to Tasman Island- Wind
- North to northeasterly 15 to 20 knots, reaching up to 25 knots offshore in the evening. Winds tending northwest to southwesterly in the late evening.
- Seas
- 1 to 2 metres.
- 1st Swell
- South to southwesterly 1 to 2 metres inshore, increasing to 2 to 3 metres offshore.
- Weather
- Mostly clear.
- Weather Situation
- A high pressure system moves over the Tasman Sea today, directing a northerly flow over Tasmania. A cold front is expected to cross the state on Saturday afternoon before clearing to the east on Sunday, followed by a weak ridge of high pressure forecast to linger into Monday. A broad area of low pressure is forecast to develop over Victoria during Monday, possibly moving near Tasmania during Tuesday.
Sisters Bay Temperature Statistics View More
October Temperature
Tasman Island (31 km)
Lowest 13 October, 2026
4 °CAverage October
11.8 °CHighest 23 October, 2026
28.3 °C
Climate (2021–2026)
Tasman Island (31 km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
11.6 °CAverage High 2021–2026
14.7 °C