Australian Government

Bureau of Meteorology


Coastal Waters Forecast 

Marine (lite) Home

IDT15123

Australian Government Bureau of Meteorology
Tasmania

Coastal Waters Forecast
Bass Strait and Approaches

Issued at 10:00 am EST on Friday 7 August 2026
for the period until midnight EST Sunday 9 August 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 weak cold front is moving east of Tasmania. A ridge of high pressure develops over the state during today, before the airstream will then tend northwesterly across Tasmania during Saturday as a strong cold front approaches from the west, expected to cross later Sunday. The airstream is then expected to tend southwesterly on Monday as the cold front moves into the Tasman Sea.

Central Coast: Cape Otway to Wilsons Promontory

Forecast for Friday 7 August until midnight

Winds: Westerly 10 to 15 knots, reaching up to 20 knots in the far east in the late morning. Winds becoming variable about 10 knots in the late afternoon then becoming north to northeasterly 10 to 15 knots in the late evening. Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon. Swell: Southwesterly 1.5 to 2 metres, increasing to 2.5 to 3 metres in the far west. Weather: Partly cloudy.

Forecast for Saturday 8 August

Strong Wind Warning for Saturday for Central Coast

Winds: Northerly 15 to 20 knots, reaching up to 30 knots in the west in the evening. Seas: Around 1 metre, increasing to 1 to 2 metres during the morning. Swell: Southwesterly 1.5 to 2.5 metres. Weather: Cloudy. 80% chance of showers in the west, 50% chance elsewhere.

Forecast for Sunday 9 August

Winds: North to northeasterly 20 to 30 knots. Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres in the west. Swell: West to southwesterly 1 to 1.5 metres, increasing to 2 to 2.5 metres in the far west. Weather: Cloudy. Near 100% chance of rain.

Central Gippsland Coast: Wilsons Promontory to Lakes Entrance

Forecast for Friday 7 August until midnight

Winds: Westerly 15 to 20 knots decreasing to about 10 knots in the late evening. Seas: 1 to 1.5 metres, decreasing to 1 metre by early evening. Swell: West to southwesterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore. Weather: Partly cloudy.

Forecast for Saturday 8 August

Winds: Variable about 10 knots becoming northerly 10 to 15 knots in the early morning then tending northeasterly in the middle of the day. Winds reaching up to 20 knots offshore in the evening. Seas: Around 1 metre. Swell: West to southwesterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore. Weather: Partly cloudy.

Forecast for Sunday 9 August

Winds: Northeasterly 15 to 25 knots. Seas: Around 1 metre, increasing to 1 to 2 metres during the morning. 1st Swell: Northeast to southeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore during the evening. 2nd Swell: West to southwesterly around 1 metre. Weather: Cloudy. 95% chance of showers.

East Gippsland Coast: Lakes Entrance to 60nm east of Gabo Island

Forecast for Friday 7 August until midnight

Winds: West to southwesterly 15 to 20 knots. Seas: 1 to 2 metres, decreasing to 1 metre later in the evening. Swell: West to southwesterly around 1 metre, increasing to 1 to 1.5 metres in the far east around midday. Weather: Partly cloudy.

Forecast for Saturday 8 August

Winds: West to southwesterly 10 to 15 knots shifting north to northeasterly 15 to 20 knots during the morning. Seas: Around 1 metre, increasing to 1 to 1.5 metres offshore later in the evening. Swell: West to southwesterly around 1 metre. Weather: Mostly sunny.

Forecast for Sunday 9 August

Winds: North to northeasterly 15 to 25 knots increasing to 20 to 30 knots during the day. Seas: 1 to 2 metres, increasing to 2 to 3 metres during the afternoon. Swell: Northeast to southeasterly below 1 metre inshore, increasing to 1 to 2 metres offshore during the evening. Weather: Cloudy. 90% chance of showers.

Far North West Coast: Sandy Cape to Stanley

Forecast for Friday 7 August until midnight

Winds: West to northwesterly 10 to 15 knots, reaching up to 20 knots east of King Island in the late morning. Winds becoming variable about 10 knots in the evening. Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon. Swell: Southwesterly 2 to 3 metres. Weather: Cloudy.

Forecast for Saturday 8 August

Strong Wind Warning for Saturday for Far North West Coast

Winds: Northerly 15 to 20 knots increasing to 15 to 25 knots in the late afternoon. Winds reaching up to 30 knots south of King Island in the evening. Seas: Below 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1.5 to 2.5 metres by early evening. Swell: Southwesterly 2 to 3 metres. Weather: Cloudy. 80% chance of showers.

Forecast for Sunday 9 August

Winds: North to northeasterly 20 to 30 knots decreasing to 15 to 20 knots during the evening. Seas: 2 to 3 metres. Swell: West to southwesterly 1 to 2 metres, increasing to 2.5 to 3 metres south of King Island. Weather: Cloudy. Near 100% chance of rain.

Central North Coast: Stanley to Northern Tip of Flinders Island

Forecast for Friday 7 August until midnight

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

Forecast for Saturday 8 August

Winds: Westerly 10 to 15 knots becoming variable about 10 knots before dawn then becoming north to northeasterly 15 to 20 knots in the morning. Seas: Around 1 metre. Swell: Westerly below 1 metre inshore, increasing to around 1 metre offshore. Weather: Cloudy.

Forecast for Sunday 9 August

Winds: Northeasterly 15 to 20 knots. Seas: 1 to 1.5 metres, increasing to 1 to 2 metres during the afternoon. Swell: Westerly around 1 metre offshore. Weather: Cloudy. Near 100% chance of rain.

Banks Strait and Franklin Sound

Forecast for Friday 7 August until midnight

Winds: Westerly about 10 knots. Seas: Below 1 metre. Swell: West to northwesterly below 1 metre. Weather: Mostly sunny.

Forecast for Saturday 8 August

Winds: West to northwesterly about 10 knots becoming north to northeasterly in the early afternoon. Seas: Below 1 metre. Swell: Southeasterly below 1 metre. Weather: Partly cloudy.

Forecast for Sunday 9 August

Winds: North to northeasterly 10 to 15 knots. Seas: Around 1 metre. Swell: East to southeasterly below 1 metre. Weather: Cloudy. 95% chance of rain.

The next routine forecast will be issued at 5:15 pm EST Friday.

* 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.