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Bureau of Meteorology


Coastal Waters Forecast 

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IDT12331

Australian Government Bureau of Meteorology
Tasmania

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

Issued at 4:05 pm EDT on Wednesday 19 November 2025
for the period until midnight EDT Saturday 22 November 2025.

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 passing over Tasmania is expected to clear to the east of the state by Thursday morning. A trough is expected to linger about the northeast on Thursday as a high pressure system centred well to the west extends a ridge over the state. The high pressure centre is expected to move over Tasmania during Friday before moving to the south of the state by the weekend, shifting the flow easterly.

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

Forecast for Wednesday 19 November until midnight

Strong Wind Warning for Wednesday for East of Flinders Island

Winds: Westerly 15 to 25 knots, reaching up to 30 knots during the afternoon and evening. Seas: 1.5 to 2.5 metres. Swell: Southerly below 1 metre. Weather: Partly cloudy.

Forecast for Thursday 20 November

Winds: West to southwesterly 15 to 20 knots, reaching up to 25 knots offshore early in the morning. Winds becoming variable about 10 knots in the late evening. Seas: 1 to 2 metres, decreasing to 1 metre during the morning. Swell: Southerly below 1 metre inshore, increasing to around 1 metre offshore. Weather: Partly cloudy.

Forecast for Friday 21 November

Winds: Variable about 10 knots becoming northeasterly 10 to 15 knots in the evening. Seas: Below 1 metre. Swell: Southerly around 1 metre. Weather: Sunny.

Forecast for Saturday 22 November

Winds: Northeasterly 15 to 20 knots. Seas: Below 1 metre, increasing to 1 to 1.5 metres offshore during the afternoon. Swell: Southerly around 1 metre. Weather: Partly cloudy.

Banks Strait and Franklin Sound

Forecast for Wednesday 19 November until midnight

Strong Wind Warning for Wednesday for Banks Strait and Franklin Sound

Winds: Westerly 20 to 25 knots, reaching up to 30 knots about Banks Strait during the afternoon and evening. Seas: 2 to 2.5 metres. Swell: West to northwesterly below 1 metre. Weather: Partly cloudy.

Forecast for Thursday 20 November

Winds: Westerly 15 to 20 knots, reaching up to 25 knots about Banks Strait early in the morning. Winds becoming variable about 10 knots in the late evening. Seas: 1 to 2 metres, decreasing to 1 metre during the morning. Swell: Northwest to southwesterly around 1 metre. Weather: Mostly sunny.

Forecast for Friday 21 November

Winds: Variable about 10 knots. Seas: Below 1 metre. Swell: Northwest to southwesterly below 1 metre. Weather: Mostly sunny.

Forecast for Saturday 22 November

Winds: Northeasterly below 10 knots tending easterly 10 to 15 knots during the morning. Seas: Below 1 metre. Swell: Northwest to southwesterly below 1 metre. Weather: Becoming cloudy.

Upper East Coast: St Helens Point to Wineglass Bay

Forecast for Wednesday 19 November until midnight

Strong Wind Warning for Wednesday for Upper East Coast

Winds: Northwesterly 15 to 20 knots, reaching up to 30 knots offshore during the afternoon and evening. Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres offshore. Swell: South to southwesterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore. Weather: Partly cloudy.

Forecast for Thursday 20 November

Winds: Northwest to southwesterly 10 to 15 knots, reaching up to 25 knots offshore early in the morning. Winds tending southwesterly in the early morning then becoming variable about 10 knots in the middle of the day. Seas: 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then decreasing below 1 metre around midday. Swell: South to southwesterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore. Weather: Mostly sunny.

Forecast for Friday 21 November

Winds: Variable about 10 knots becoming south to southwesterly 10 to 15 knots before dawn then shifting north to northeasterly in the middle of the day. Seas: Below 1 metre. Swell: Southerly around 1 metre inshore, increasing to 1 to 2 metres offshore. Weather: Mostly sunny.

Forecast for Saturday 22 November

Winds: Northerly 10 to 15 knots turning northeasterly during the day. Seas: Around 1 metre. Swell: Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore. Weather: Mostly sunny.

Lower East Coast: Wineglass Bay to Tasman Island

Forecast for Wednesday 19 November until midnight

Winds: Westerly 15 to 20 knots. Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore. Swell: Southwesterly 1 to 1.5 metres inshore, increasing to 2 to 3 metres offshore. Weather: Partly cloudy.

Forecast for Thursday 20 November

Winds: West to southwesterly 15 to 20 knots, reaching up to 25 knots near Tasman Island in the evening. Seas: 1 to 2 metres, decreasing to 1 to 1.5 metres around midday. Swell: Southwesterly 1 to 1.5 metres inshore, increasing to 2 to 3 metres offshore. Weather: Mostly sunny.

Forecast for Friday 21 November

Winds: West to southwesterly 15 to 20 knots shifting east to southeasterly 10 to 15 knots in the late morning and early afternoon then becoming variable about 10 knots in the late afternoon. Seas: 1 to 1.5 metres, decreasing below 1 metre during the morning. Swell: Southwesterly 1 to 1.5 metres inshore, increasing to 2 to 3 metres offshore. Weather: Mostly sunny.

Forecast for Saturday 22 November

Winds: North to northeasterly 10 to 15 knots tending north to northwesterly during the morning then tending north to northeasterly during the day. Seas: Around 1 metre. Swell: Southwesterly 1 to 1.5 metres inshore, increasing to 1.5 to 2.5 metres offshore. Weather: Sunny.

South East Coast: Tasman Island to South East Cape

Forecast for Wednesday 19 November until midnight

Strong Wind Warning for Wednesday for South East Coast

Winds: Westerly 20 to 25 knots, reaching up to 30 knots during the afternoon and evening. Seas: 2 to 3 metres. Swell: West to southwesterly 2 to 3 metres inshore, increasing to 4 metres offshore. Weather: Partly cloudy. 60% chance of showers, with possible small hail.

Forecast for Thursday 20 November

Strong Wind Warning for Thursday for South East Coast

Winds: Westerly 20 to 25 knots, reaching up to 30 knots during the afternoon and evening. Seas: 1.5 to 2.5 metres. Swell: Southwesterly 2 to 3 metres inshore, increasing to 3 to 4 metres offshore. Weather: Partly cloudy. 60% chance of showers, with possible small hail.

Forecast for Friday 21 November

Winds: Westerly 15 to 25 knots decreasing to 10 to 15 knots in the evening. Seas: 1.5 to 2 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: Cloudy.

Forecast for Saturday 22 November

Winds: Westerly 10 to 15 knots becoming variable about 10 knots during the morning then becoming southeasterly 10 to 15 knots during the evening. Seas: Around 1 metre. Swell: Southwesterly 2.5 to 3 metres. Weather: Mostly sunny.

South West Coast: South East Cape to Low Rocky Point

Forecast for Wednesday 19 November until midnight

Strong Wind Warning for Wednesday for South West Coast

Winds: Westerly 20 to 25 knots, reaching up to 30 knots during the afternoon and evening. Seas: 2 to 3 metres. Swell: Westerly 4 metres. Weather: Partly cloudy. 70% chance of showers, with possible small hail.

Forecast for Thursday 20 November

Strong Wind Warning for Thursday for South West Coast

Winds: Westerly 20 to 25 knots, reaching up to 30 knots near Maatsuyker Island in the evening. Seas: 1.5 to 2 metres. Swell: Westerly 4 metres, tending southwesterly 4 metres during the morning. Weather: Partly cloudy. 70% chance of showers, with possible small hail.

Forecast for Friday 21 November

Winds: Westerly 15 to 25 knots decreasing to 10 to 15 knots in the evening. Seas: 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning. Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres during the morning. Weather: Cloudy.

Forecast for Saturday 22 November

Winds: Northwest to southwesterly 10 to 15 knots tending south to southwesterly during the day then turning southeasterly 15 to 20 knots during the afternoon. Seas: Around 1 metre, increasing to 1 to 1.5 metres inshore during the evening. Swell: Southwesterly 2.5 to 3 metres. Weather: Partly cloudy.

The next routine forecast will be issued at 10:00 pm EDT Wednesday.

* 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.