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

View the current warnings for Tasmania

Forecast issued at 4:05 pm EST on Sunday 26 April 2026.

Weather Situation

A near-stationary high-pressure system over the Tasman Sea extends a ridge across Tasmania, directing a mostly west to northwesterly flow over the State until the end of the week. A cold front is approaching from the west, and is expected to weaken before clipping the south of the State during Sunday night. The ridge becomes reestablished across Tasmania on Monday. Northwesterly winds freshening on Tuesday ahead of another approaching cold front that is expected to again clip southern Tasmania late Tuesday and early Wednesday.

Forecast for Sunday until midnight

Winds
West to southwesterly 15 to 20 knots, reaching up to 25 knots offshore in the late evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres later in the evening.
Swell
West to southwesterly 1.5 to 2.5 metres.
Weather
Partly cloudy.

Monday 27 April

Winds
Westerly 15 to 25 knots tending northwesterly 15 to 20 knots in the evening.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 1 to 2 metres during the afternoon.
Swell
West to southwesterly 1.5 to 2 metres, increasing to 2 to 3 metres during the afternoon.
Weather
Partly cloudy.

Tuesday 28 April

Winds
Northwesterly 15 to 25 knots increasing to 20 to 30 knots in the early afternoon then tending westerly in the late evening.
Seas
1 to 2 metres, increasing to 2 to 3 metres during the afternoon.
Swell
Southwesterly 2 to 3 metres inshore, increasing to 2.5 to 4 metres offshore.
Weather
Partly cloudy. 50% chance of showers.

Wednesday 29 April

Winds
West to southwesterly 20 to 30 knots becoming variable about 10 knots during the morning then becoming north to northeasterly 15 to 20 knots during the afternoon.
Seas
2 to 3 metres, decreasing to 1 to 1.5 metres during the morning.
Swell
Southwesterly 2 to 3 metres inshore, increasing to 3 to 4 metres offshore.
Weather
Partly cloudy.

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 10:00 pm EST Sunday.

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