Forecasters have warned people to expect up to seven days of unsettled conditions as a series of wet weather systems engulf the UK.
And pockets of England have been told to prepare for yet further flooding after the Environment Agency issued another round of warnings.
Parts of England and Wales were brought to their knees last month when flood water surged through streets and down roads, cutting off whole communities and forcing dozens to flee their homes.
Rivers burst their banks and fields were flooded as several days' rain fell in just a few hours.
Sections of the transport network also ground to a halt as train travel was disrupted and some small passenger planes grounded.
The UK has experienced pockets of mild, dry weather in the run-up to Christmas, but that is all expected to change by tomorrow.
John Lee, a forecaster with MeteoGroup - the weather division of the Press Association - said: "It is going to be quite unsettled, wet and windy across the UK for the next few days.
"We're looking at seven days ahead and in that time it is looking unsettled with a succession of Atlantic systems coming to the UK.
"Does that mean seven days of rain? No, but it is going to be mild and unsettled until Christmas."
Mr Lee said the east coast of England could expect gusty winds too, before the weather system starts clearing from Cornwall and Devon on Friday. However, he said this would likely be replaced by yet another band of wet weather.