Sisters Bay Weather Forecast
- 7
- 14
Partly cloudy
- 6
- 11
Shower or two
- 5
- 13
Late showers
- 4
- 10
Shower or two. Windy
- 6
- 14
Partly cloudy
- 7
- 15
Sunny
- 6
- 15
Partly cloudy
Today 6 Sep South East
Partly cloudy. Medium chance of showers in the south, most likely later this evening. Near zero chance of rain elsewhere. Winds northwest to southwesterly 15 to 25 km/h.
Lower East Coastal Waters
Wineglass Bay to Tasman Island- Wind
- Variable about 10 knots becoming northeasterly 10 to 15 knots in the late afternoon then turning north to northwesterly in the evening. Winds reaching up to 20 knots offshore in the late evening.
- Seas
- Below 1 metre.
- 1st Swell
- South to southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
- Weather
- Partly cloudy.
- Weather Situation
- A west to southwesterly flow builds over Tasmania this evening and is expected to persist this week. A series of cold fronts embedded in the westerly flow are forecast to cross the state on Monday and late Tuesday, before a ridge of high pressure approaches from the west on Thursday.
Sisters Bay Temperature Statistics View More
September Temperature
Tasman Island (31km)
Lowest 4 September, 2026
6.1 °CAverage September
10.6 °CHighest 1 September, 2026
15.9 °C
Climate (2021–2026)
Tasman Island (31km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
11.6 °CAverage High 2021–2026
14.6 °C