Ferry services from the UK to the Continent, Ireland and the Isle of Wight are continuing to operate through the snow and ice with no “significant delays”, according to the Passenger Shipping Association.
Operators say they “remain confident” that they can continue to provide a “near-full” service in the run up to Christmas.
There is some spare capacity for those considering alternative transport routes for the festive break.
But the PSA advised passengers to check that they are able to complete their journey by road or rail before setting off to the port.
“Apart from this, ferry members of the PSA are reporting normal or near normal sailing schedules, with capacity still available on many routes for passengers not confident of being able to guarantee travel by air or tunnel,” a statement said.
PSA director Bill Gibbons said: “Our ferry company members are very experienced in continuing to provide scheduled services in testing weather conditions, and the snow and ice have, and are expected to have little effect on sailing schedules.
“People noticed how ferries came to the rescue in the ash cloud situation earlier this year, and it looks like ferries could also be welcome saviours this Christmas just as long as passengers can get to their port of embarkation.”