South East Coastal Waters Forecast: Tasman Island to South East Cape

View the current warnings for Tasmania

Forecast issued at 10:00 pm EDT on Sunday 14 December 2025.

Weather Situation

A strong southwesterly flow persists over Tasmania this evening, continuing into Monday. A ridge of high pressure is forecast to extend over the state on Tuesday as the high centre moves through Bass Strait, and out to the Tasman Sea by Wednesday. A trough with a cool southerly change is expected to move over Tasmania late Thursday.

Forecast for Sunday until midnight

Gale Warning for Sunday for South East Coast

Winds
Westerly 30 to 40 knots.
Seas
4 metres.
Swell
Southwesterly 4 to 6 metres inshore, increasing to 6 to 8 metres offshore.
Weather
Cloudy. 50% chance of showers. The chance of a thunderstorm. Possible small hail.

Monday 15 December

Gale Warning for Monday for South East Coast

Winds
West to southwesterly 30 to 40 knots decreasing to 25 to 30 knots in the late evening.
Seas
3 to 4 metres.
Swell
Southwesterly 4 to 6 metres inshore, increasing to 5 to 8 metres offshore.
Weather
Cloudy. 80% chance of showers, with possible small hail in the morning and afternoon.

Tuesday 16 December

Winds
Westerly 20 to 30 knots decreasing to 15 to 20 knots in the late evening.
Seas
2 to 3 metres.
Swell
Southwesterly 4 to 6 metres, decreasing to 3 to 4 metres during the morning.
Weather
Cloudy.

Wednesday 17 December

Winds
West to northwesterly 15 to 20 knots.
Seas
1 to 2 metres.
1st Swell
Southwesterly 2 to 3 metres.
2nd Swell
Northeasterly around 1 metre.
Weather
Mostly sunny.

Please be awareWind and wave forecasts are averages. Wind gusts can be 40 per cent stronger than the forecast, and stronger still in squalls and thunderstorms. Maximum waves can be twice the forecast height.

Nearby Coastal Waters

Tas - BANKS STRAIGHT AND FRANKLIN SOUND Tas - CENTRAL NORTH COAST, Stanley to the Northern Tip of Flinders Is Tas - EAST OF FLINDERS ISLAND, Northern Tip of Flinders Is to St Helens Pt Tas - UPPER EAST COAST, St Helens Pt to Wineglass Bay Tas - LOWER EAST COAST, Wineglass Bay to Tasman Island Tas - SOUTHEAST COAST, Tasman Is to South East Cape Tas - SOUTHWEST COAST, South East Cape to Low Rocky Pt Tas - CENTRAL WEST COAST, Low Rocky Pt to Sandy Cape Tas - FAR NORTHWEST COAST, Sandy Cape to Stanley and King Island Vic - East Gippsland Coast - Coastal Waters Forecast Vic - Central Gippsland Coast - Coastal Waters Forecast Vic - Central Coast - Coastal Waters Forecast Vic - West Coast - Coastal Waters Forecast

The next routine forecast will be issued at 4:00 am EDT Monday.

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