Sisters Bay Weather Forecast
- 6
- 11
Showers. Becoming windy
- 7
- 14
Showers
- 8
- 17
Showers increasing
- 8
- 14
Possible shower
- 9
- 16
Shower or two
- 7
- 11
Showers. Windy
- 6
- 11
Shower or two
Today 12 Apr South East
Cloudy. Very high chance of showers in the south, medium chance elsewhere. Snow falling above 1000 metres. Possible small hail in the late morning and afternoon. Winds westerly 30 to 45 km/h decreasing to 25 to 35 km/h in the late evening. Daytime maximum temperatures between 7 and 13.
Lower East Coastal Waters
Wineglass Bay to Tasman Island- Wind
- Southwesterly 25 to 30 knots, reaching up to 35 knots offshore during the afternoon and evening.
- Seas
- 3 metres, increasing to 2.5 to 4 metres near Tasman Island.
- 1st Swell
- Southwesterly 1 to 2 metres inshore, increasing to 2.5 to 4 metres offshore.
- Weather
- Cloudy. 90% chance of showers offshore, 60% chance elsewhere. Possible small hail from the late morning.
- Weather Situation
- A high pressure system build over the Bight during Sunday, maintaining a cold southwesterly stream over Tasmania during the day. The high is expected to move to the north of Tasmania later Monday, extending and ridge over the state as it passes. A cold front approaches from the west on Tuesday and is expected to cross later in the day, with another front approaching from the west later Wednesday. These systems will maintain cooler weather over the state early next week.
Sisters Bay Temperature Statistics View More
April Temperature
Tasman Island (31km)
Lowest 11 April, 2026
6 °CAverage April
12.4 °CHighest 1 April, 2026
22 °C
Climate (2021–Present)
Tasman Island (31km)
Average Low 2021–2026
9.3 °CAverage 2021–2026
11.5 °CAverage High 2021–2026
14.5 °C