IDT12330
Australian Government Bureau of Meteorology
Tasmania
Issued at 4:00 am EDT on Tuesday 18 November 2025
for the period until midnight EDT Thursday 20 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.
A series of cold fronts are forecast to pass over the state in a persistent west to southwesterly flow on the eastern flank of a high pressure system to the west. The flow will ease later this week as the high pressure system moves closer to Tasmania and extends a ridge over the state on Friday.
Winds: Westerly 20 to 30 knots decreasing to 15 to 20 knots in the late evening. Seas: 2 to 3 metres. Swell: West to southwesterly 2 to 3 metres, increasing to 3 to 4 metres south of King Island. Weather: Cloudy. 70% chance of showers.
Winds: Westerly 15 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, increasing to 3 to 4 metres south of King Island. Weather: Cloudy. 70% chance of showers, with possible small hail south of King Island in the late afternoon and evening.
Winds: Westerly 20 to 25 knots turning southwesterly 15 to 20 knots during the morning. Seas: 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning. Swell: Southwesterly 2 to 3 metres, increasing to 4 metres south of King Island. Weather: Partly cloudy.
Winds: Westerly 20 to 30 knots. Seas: 2 to 3 metres. Swell: Westerly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore. Weather: Partly cloudy. 50% chance of showers.
Winds: Westerly 20 to 25 knots, reaching up to 30 knots during the afternoon and evening. Seas: 1.5 to 2.5 metres. Swell: Westerly 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning. Weather: Partly cloudy. 60% chance of showers, with possible small hail inshore at night.
Winds: West to southwesterly 15 to 25 knots. Seas: 1 to 2 metres. Swell: Westerly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon or evening. Weather: Mostly sunny.
Winds: Westerly 20 to 30 knots. Seas: 2 to 3 metres. Swell: South to southwesterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore. Weather: Partly cloudy.
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 around 1 metre. Weather: Partly cloudy.
Winds: Westerly 15 to 25 knots decreasing to 10 to 15 knots during the evening. Seas: 1.5 to 2.5 metres. Swell: Southerly below 1 metre inshore, increasing to around 1 metre offshore. Weather: Partly cloudy.
Winds: Westerly 20 to 30 knots. Seas: 2 to 3 metres. Swell: West to northwesterly around 1 metre, increasing to 1 to 1.5 metres about Banks Strait. Weather: Partly cloudy.
Winds: Westerly 15 to 25 knots, reaching up to 30 knots about Banks Strait during the afternoon and evening. Seas: 1.5 to 2.5 metres. Swell: West to northwesterly around 1 metre. Weather: Partly cloudy. 50% chance of showers.
Winds: Westerly 15 to 25 knots. Seas: 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning. Swell: Northwest to southwesterly around 1 metre. Weather: Partly cloudy.
The next routine forecast will be issued at 10:00 am EDT Tuesday.
* 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.