The East Coast is likely to experience an additional 20-25 millimeters of rain, with higher falls of 20-60mm developing on parts of the south coast.

The persistent rainfall is due to southeasterly winds hitting a low pressure system to the state's North-East.

Roads in Glamorgan-Spring Bay have been closed due to flooding with other catchments under flood watch.

Accompanying the rainfall is low cloud and poor visibility on roads in the east and south east of the state, with a road weather alert issued for motorists.

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It is unusual for Tasmania's East to experience such persistent rainfall, with these conditions more often observed in the west coast region.

Break O'Day mayor Mick Tucker said that the conditions weren't ideal for the Bay Of Fires Winter Arts Festival, but temperatures had remained mild.

A moderate flood warning is in place for the South Esk and Macquarie rivers, and a minor flood warning is current for the Jordan River.

Holidaymakers spending the long weekend on the East Coast can expect clearer conditions on Monday with rain easing.

The following roads in the Glamorgan-Spring Bay area are closed due to flooding:

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