Sisters Bay Weather Forecast
- 8
- 15
Mostly sunny
- 7
- 14
Partly cloudy
- 8
- 16
Shower or two
- 7
- 13
Cloudy
- 9
- 12
Showers
- 7
- 13
Shower or two
- 7
- 12
Showers
Today 30 Aug South East
Partly cloudy. Slight chance of a shower in the south, near zero chance elsewhere. Winds westerly 25 to 35 km/h. Daytime maximum temperatures between 11 and 18.
Lower East Coastal Waters
Wineglass Bay to Tasman Island- Wind
- West to southwesterly 15 to 20 knots, reaching up to 30 knots offshore in the evening.
- Seas
- 1 to 1.5 metres, increasing to 1.5 to 2.5 metres offshore.
- 1st Swell
- Southwesterly 1.5 to 2.5 metres inshore, increasing to 3 to 4 metres offshore.
- Weather
- Sunny.
- Weather Situation
- A high pressure ridge extending across the north will persist into the new week with the high pressure centre drifting into the Tasman Sea late Monday. A strong cold front is expected to approach from the west, crossing Tasmania on Tuesday, followed by strong westerly flow.
Sisters Bay Temperature Statistics View More
August Temperature
Tasman Island (31km)
Lowest 23 August, 2026
6 °CAverage August
10 °CHighest 20 August, 2026
17.1 °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