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Coastal Waters Forecast 

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IDT12331

Australian Government Bureau of Meteorology
Tasmania

Updated Coastal Waters Forecast for Tasmania
Eastern Zones: Northern Tip of Flinders Island to Tasman Island

Issued at 5:34 pm EST on Thursday 9 April 2026
for the period until midnight EST Sunday 12 April 2026.

Please be aware
Wind 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.

Warning Information

For latest warnings go to www.bom.gov.au, subscribe to RSS feeds, call 1300 659 210* or listen for warnings on relevant TV and radio broadcasts.

Weather Situation

A cold front will approach and cross Tasmania overnight, with a series of troughs to cross the state later Friday and on Saturday as an area of low pressure moves well to the south of Tasmania. A high over the Bight will direct a southwesterly stream over Tasmania on Sunday, with the high expected to move to the north of the state later Monday.

East of Flinders Island: Northern Tip of Flinders Island to St Helens Point

Forecast for Thursday 9 April until midnight

Winds: North to northwesterly 15 to 20 knots, reaching up to 25 knots inshore in the late afternoon. Seas: 1.5 to 2 metres, decreasing to 1 to 1.5 metres by early evening. Swell: Easterly below 1 metre. Weather: Partly cloudy. 60% chance of showers. The chance of a thunderstorm later this evening.

Forecast for Friday 10 April

Gale Warning for Friday for East of Flinders Island

Winds: Northwesterly 20 to 30 knots turning westerly 25 to 30 knots during the morning and early afternoon. Winds reaching up to 35 knots offshore in the afternoon. Seas: 1.5 to 2 metres, increasing to 2 to 3 metres during the morning. 1st Swell: South to southeasterly 1 to 2 metres offshore. 2nd Swell: Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore during the morning. Weather: Cloudy. 95% chance of showers.

Forecast for Saturday 11 April

Winds: Westerly 25 to 30 knots increasing to 25 to 35 knots in the middle of the day then decreasing to 25 to 30 knots in the late evening. Seas: 2.5 to 3 metres, increasing to 3 to 4 metres around midday. Swell: Southeast to southwesterly 1 to 2 metres offshore, tending northwest to southwesterly 2 to 4 metres around midday. Weather: Cloudy. 95% chance of showers. The chance of a thunderstorm offshore in the afternoon and evening.

Forecast for Sunday 12 April

Winds: Westerly 25 to 30 knots turning southwesterly 20 to 30 knots during the morning. Seas: 2 to 3 metres. Swell: Northwest to southwesterly below 1 metre inshore, increasing to 1 to 2 metres offshore. Weather: Partly cloudy. 70% chance of showers.

Banks Strait and Franklin Sound

Forecast for Thursday 9 April until midnight

Winds: Northwesterly 15 to 20 knots, reaching up to 25 knots near Eddystone Point in the late afternoon. Seas: 1 to 1.5 metres, decreasing to 1 metre later in the evening. Swell: Easterly below 1 metre. Weather: Partly cloudy. 70% chance of showers. The chance of a thunderstorm later this evening.

Forecast for Friday 10 April

Gale Warning for Friday for Banks Strait and Franklin Sound

Winds: Northwesterly 15 to 20 knots turning westerly 20 to 30 knots early in the morning. Winds reaching up to 35 knots in the afternoon. Seas: 1 to 2 metres, increasing to 2 to 4 metres during the morning. 1st Swell: Northwest to southwesterly around 1 metre, tending west to northwesterly 1 to 2 metres during the afternoon. 2nd Swell: East to northeasterly around 1 metre. Weather: Cloudy. Near 100% chance of showers.

Forecast for Saturday 11 April

Winds: Westerly 20 to 30 knots increasing to 25 to 35 knots in the middle of the day then decreasing to 25 to 30 knots in the evening. Seas: 2 to 3 metres. Swell: West to northwesterly 1 to 2 metres, increasing to 2 to 3 metres during the afternoon. Weather: Cloudy. 95% chance of showers. The chance of a thunderstorm in the morning and afternoon.

Forecast for Sunday 12 April

Winds: Westerly 20 to 30 knots turning southwesterly during the afternoon. Seas: 2 to 3 metres. Swell: Westerly 1 to 2 metres, decreasing to around 1 metre during the morning. Weather: Partly cloudy.

Upper East Coast: St Helens Point to Wineglass Bay

Forecast for Thursday 9 April until midnight

Strong Wind Warning for Thursday for Upper East Coast

Winds: Northerly 20 to 25 knots, reaching up to 30 knots offshore in the late afternoon. Seas: 1.5 to 2.5 metres. Swell: Southerly below 1 metre. Weather: Partly cloudy.

Forecast for Friday 10 April

Gale Warning for Friday for Upper East Coast

Winds: Northwesterly 15 to 25 knots increasing to 20 to 30 knots in the morning. Winds reaching up to 35 knots offshore in the late afternoon. Seas: 1.5 to 2 metres, increasing to 2 to 3 metres around midday. Swell: East to northeasterly around 1 metre. Weather: Partly cloudy. 90% chance of showers. The chance of a thunderstorm in the morning and afternoon.

Forecast for Saturday 11 April

Winds: Northwesterly 20 to 30 knots turning westerly in the late afternoon. Seas: 1 to 2 metres, increasing to 2 to 3 metres offshore. Swell: Northeasterly around 1 metre. Weather: Partly cloudy. 60% chance of showers. The chance of a thunderstorm offshore in the late morning and afternoon.

Forecast for Sunday 12 April

Winds: Westerly 20 to 30 knots turning southwesterly during the morning. Seas: 2 to 3 metres. Swell: Southwesterly around 1 metre inshore, increasing to 2 to 3 metres offshore during the morning. Weather: Cloudy. 60% chance of showers. The chance of a thunderstorm in the morning.

Lower East Coast: Wineglass Bay to Tasman Island

Forecast for Thursday 9 April until midnight

Strong Wind Warning for Thursday for Lower East Coast

Winds: Northerly 20 to 25 knots, reaching up to 30 knots offshore in the evening. Seas: 2 to 2.5 metres. Swell: Southwesterly below 1 metre inshore, increasing to 1 to 2 metres offshore. Weather: Partly cloudy. 50% chance of showers.

Forecast for Friday 10 April

Strong Wind Warning for Friday for Lower East Coast

Winds: West to northwesterly 15 to 25 knots, reaching up to 30 knots during the afternoon and evening. Seas: 1 to 2 metres, increasing to 2 to 3 metres during the afternoon. 1st Swell: Southwesterly 1 to 1.5 metres, increasing to 1 to 2 metres around midday. 2nd Swell: Northeasterly around 1 metre. Weather: Cloudy. 95% chance of showers. The chance of a thunderstorm in the late morning and afternoon.

Forecast for Saturday 11 April

Winds: West to northwesterly 20 to 30 knots. Seas: 2 to 3 metres. 1st Swell: Southwesterly 1 to 2 metres, increasing to 2 to 3 metres later in the evening. 2nd Swell: Northeasterly around 1 metre. Weather: Partly cloudy. 90% chance of showers. The chance of a thunderstorm offshore in the late morning and afternoon.

Forecast for Sunday 12 April

Winds: Westerly 25 to 35 knots turning southwesterly 25 to 30 knots during the morning. Seas: 2.5 to 3 metres. Swell: Southwesterly 1 to 2 metres inshore, increasing to 2 to 4 metres offshore. Weather: Cloudy. 90% chance of showers. The chance of a thunderstorm in the morning.

South East Coast: Tasman Island to South East Cape

Forecast for Thursday 9 April until midnight

Strong Wind Warning for Thursday for South East Coast

Winds: North to northwesterly 15 to 25 knots tending west to northwesterly 20 to 25 knots in the evening. Winds reaching up to 30 knots near Cape Bruny in the late evening. Seas: 1.5 to 2.5 metres. 1st Swell: West to southwesterly 2 to 2.5 metres. 2nd Swell: Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore by early evening. Weather: Cloudy. 90% chance of showers.

Forecast for Friday 10 April

Gale Warning for Friday for South East Coast

Winds: Westerly 20 to 30 knots tending west to northwesterly 15 to 25 knots before dawn then becoming westerly 25 to 30 knots in the late afternoon. Winds reaching up to 35 knots in the evening. Seas: 1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 2 to 3 metres during the afternoon. 1st Swell: Westerly 2 to 3 metres. 2nd Swell: Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore. Weather: Cloudy. Near 100% chance of showers. The chance of a thunderstorm in the afternoon and evening. Possible small hail in the late afternoon and evening.

Forecast for Saturday 11 April

Winds: Northwesterly 25 to 30 knots turning westerly 30 to 35 knots in the late morning and early afternoon. Seas: 2 to 3 metres, increasing to 2.5 to 4 metres offshore. Swell: Westerly 2 to 3 metres, increasing to 3 to 5 metres during the afternoon, then tending west to southwesterly 4 to 6 metres later in the evening. Weather: Cloudy. Near 100% chance of showers. The chance of a thunderstorm in the morning and afternoon. Possible small hail.

Forecast for Sunday 12 April

Winds: Westerly 30 to 35 knots turning southwesterly 25 to 35 knots during the morning. Seas: 3 metres. Swell: Southwesterly 2.5 to 4 metres inshore, increasing to 4 to 6 metres offshore. Weather: Cloudy. Near 100% chance of showers. The chance of a thunderstorm in the morning.

South West Coast: South East Cape to Low Rocky Point

Forecast for Thursday 9 April until midnight

Strong Wind Warning for Thursday for South West Coast

Winds: Northwesterly 20 to 30 knots. Seas: 2 to 3 metres, increasing to 2 to 4 metres offshore. 1st Swell: Westerly 2 to 3 metres. 2nd Swell: Easterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore by early evening. Weather: Cloudy. Near 100% chance of showers.

Forecast for Friday 10 April

Strong Wind Warning for Friday for South West Coast

Winds: Westerly 20 to 30 knots tending west to northwesterly 15 to 25 knots in the early morning then becoming westerly 20 to 30 knots in the early afternoon. Seas: 2 to 3 metres. 1st Swell: Westerly 2 to 3 metres inshore, increasing to 2.5 to 4 metres offshore. 2nd Swell: Easterly around 1 metre. Weather: Cloudy. Near 100% chance of showers. The chance of a thunderstorm in the late afternoon and evening. Possible small hail.

Forecast for Saturday 11 April

Winds: West to northwesterly 25 to 30 knots becoming northwesterly 30 to 35 knots before dawn then tending westerly 25 to 30 knots in the morning. Seas: 3 to 5 metres. Swell: Westerly 2.5 to 3 metres, increasing to 3 to 5 metres during the morning, then increasing to 5 to 7 metres during the afternoon. Weather: Cloudy. Near 100% chance of showers. The chance of a thunderstorm in the morning. Possible small hail.

Forecast for Sunday 12 April

Winds: Southwesterly 20 to 30 knots. Seas: 2 to 3 metres. Swell: Southwesterly 5 to 6 metres, decreasing to 4 metres during the afternoon or evening. Weather: Cloudy. Near 100% chance of showers.

The next routine forecast will be issued at 10:00 pm EST Thursday.

* Calls to 1300 numbers cost around 27.5c incl. GST, higher from mobiles or public phones. Marine forecasts are also available on VHF and HF radio. View the radio schedule on www.bom.gov.au/marine

Check the latest Coastal Waters Forecasts for information on wind, wave and weather conditions for neighbouring coastal zones.