Derwent Estuary Forecast

View the current warnings for Tasmania

Forecast issued at 4:05 pm EDT on Thursday 11 December 2025.

Weather Situation

A high pressure system over the state will drift eastwards into the Tasman Sea on Friday. A weak cold front is expected to cross Tasmania during Saturday, ahead of a second stronger cold front to cross on Sunday. A high pressure system in the Bight is forecast to extend a ridge over western Tasmania late Monday.

Forecast for Thursday until midnight

Winds
Southeasterly 10 to 15 knots becoming variable below 10 knots in the evening.
Seas
Below 1 metre.
Weather
Clear.

Friday 12 December

Winds
North to northwesterly below 10 knots tending northeast to southeasterly 15 to 20 knots in the morning then tending northerly 10 to 15 knots in the evening.
Seas
Around 1 metre.
Weather
Mostly sunny.

Saturday 13 December

Winds
Variable about 10 knots becoming southeasterly 10 to 15 knots in the morning then shifting north to northwesterly below 10 knots in the late evening.
Seas
Around 1 metre.
Weather
Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the morning and afternoon.

Sunday 14 December

Winds
Northwesterly 10 to 15 knots turning westerly 15 to 25 knots during the morning.
Seas
Below 0.5 metres, increasing to around 1 metre during the morning.
Weather
Partly cloudy. 80% chance of showers.

Monday 15 December

Winds
West to southwesterly 15 to 25 knots.
Seas
Around 1 metre.
Weather
Partly cloudy. 50% chance of showers, with possible small hail in the morning and afternoon.

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 Thursday.

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