Derwent Estuary Forecast

View the current warnings for Tasmania

Forecast issued at 4:05 pm EDT on Monday 16 March 2026.

Weather Situation

A ridge of high pressure over Tasmania will weaken overnight ahead of a weak cold front expected to move across the state on Tuesday. The ridge of high pressure will return quickly late Tuesday and will persist on Wednesday and Thursday then will move eastwards on Friday ahead of an approaching cold front.

Forecast for Monday until midnight

Winds
South to southeasterly below 10 knots.
Seas
Below 1 metre.
Weather
Cloudy.

Tuesday 17 March

Winds
West to northwesterly below 10 knots tending west to southwesterly 10 to 15 knots in the middle of the day then tending south to southwesterly 15 to 20 knots in the late afternoon.
Seas
Below 0.5 metres, increasing to around 1 metre during the afternoon.
Weather
Partly cloudy.

Wednesday 18 March

Winds
Variable about 10 knots becoming south to southeasterly 10 to 15 knots in the early afternoon then shifting west to northwesterly below 10 knots in the late evening.
Seas
Around 1 metre, decreasing below 0.5 metres during the morning, then increasing to below 1 metre around midday.
Weather
Partly cloudy.

Thursday 19 March

Winds
Northwesterly below 10 knots becoming east to southeasterly during the morning then becoming northeasterly during the evening.
Seas
Below 1 metre.
Weather
Partly cloudy.

Friday 20 March

Winds
Variable below 10 knots becoming south to southeasterly 10 to 15 knots during the afternoon then becoming south to southwesterly below 10 knots during the evening.
Seas
Below 1 metre.
Weather
Mostly sunny.

Please be awareWind 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.

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

Product IDT12420