Square Bay Weather Forecast
- 13
- 23
Partly cloudy
- 11
- 19
Shower or two. Becoming windy
- 7
- 18
Windy. Cloudy
- 8
- 23
Partly cloudy
- 9
- 28
Mostly sunny
- 12
- 25
Possible shower developing
- 11
- 19
Shower or two
Today 13 Dec East Coast
Partly cloudy. Slight chance of a shower, becoming less likely in the late afternoon and evening. The chance of a thunderstorm in the afternoon and early evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding about higher ground. Winds northeast to southeasterly 15 to 25 km/h tending north to northwesterly in the late evening. Daytime maximum temperatures 22 to 27.
Lower East Coastal Waters
Wineglass Bay to Tasman Island- Wind
- Southeast to southwesterly 15 to 20 knots tending east to southeasterly 10 to 15 knots in the early afternoon then shifting northwesterly in the evening.
- Seas
- 1 to 2 metres, decreasing to 1 metre by early evening.
- 1st Swell
- Southwesterly around 1 metre inshore, increasing to 1 to 2 metres offshore.
- Weather
- Partly cloudy. The chance of a thunderstorm in the afternoon and early evening.
- Weather Situation
- A weak cold front is crosses Tasmania today, ahead of a second stronger cold front to cross early tomorrow. The next high pressure system in the Bight is then forecast to move eastwards over Tasmania by late Monday and into the Tasman Sea on Tuesday.
Square Bay Temperature Statistics View More
December Temperature
Maria Island (Point Lesueur) (34km)
Lowest 1 December, 2025
7.9 °CAverage December
14.6 °CHighest 4 December, 2025
29 °C
Climate (2020–Present)
Maria Island (Point Lesueur) (34km)
Average Low 2020–2025
10.7 °CAverage 2020–2025
13.4 °CAverage High 2020–2025
16.8 °C