IDT12332
Australian Government Bureau of Meteorology
Tasmania
Issued at 10:00 am EST on Saturday 19 September 2026
for the period until midnight EST Monday 21 September 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.
A high to the north of Tasmania is combining with a cold front passing to the south of Tasmania to direct a vigorous westerly flow over the state, with these conditions to continue into later this morning. A weak ridge is forecast to extend over Tasmania this afternoon and evening, ahead of another cold front to cross the state on Sunday evening. The flow will tend colder southwesterly on Monday morning, with a high to establish over the Bight. This high is expected to move to the north of Tasmania on Tuesday morning and lie to the northeast of the state by Tuesday evening.
Winds: Westerly 20 to 30 knots, reaching up to 35 knots in the late morning and early afternoon. Seas: 3 to 4 metres, decreasing below 3 metres by early evening. Swell: Southwesterly 4 to 5 metres. Weather: Partly cloudy.
Winds: Northerly 15 to 25 knots turning westerly 25 to 30 knots in the early afternoon. Winds reaching up to 40 knots during the afternoon and evening. Seas: 1.5 to 2.5 metres, increasing to 3 to 5 metres during the afternoon. Swell: Southwesterly 3 to 5 metres, tending westerly 3 to 5 metres by early evening. Weather: Mostly sunny. 70% chance of showers, with possible small hail at night.
Winds: Westerly 25 to 35 knots. Seas: 3 to 4 metres. Swell: West to southwesterly 3 to 5 metres inshore, increasing to 5 to 7 metres offshore during the afternoon or evening. Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the afternoon and evening. Possible small hail.
Winds: Westerly 20 to 30 knots, reaching up to 35 knots near Maatsuyker Island in the late morning. Winds turning northwesterly in the evening. Seas: 2 to 3 metres. Swell: Westerly 4 to 5 metres. Weather: Partly cloudy.
Winds: Northwesterly 25 to 30 knots, reaching up to 35 knots during the day. Winds tending westerly in the evening. Seas: 2 to 3 metres, increasing to 3 to 5 metres during the morning. Swell: Southwesterly 3 to 4 metres, decreasing to 3 metres around midday, then tending west to southwesterly 3 to 4 metres during the afternoon. Weather: Partly cloudy. 95% chance of showers, with possible small hail in the evening.
Winds: Southwesterly 30 to 35 knots turning westerly 25 to 35 knots during the morning. Seas: 3 to 4 metres. Swell: Westerly 4 to 5 metres, increasing to 6 to 7 metres during the evening. Weather: Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the afternoon and evening. Possible small hail.
The next routine forecast will be issued at 4:05 pm EST Saturday.
* 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.