The RAC and transport analysis company Inrix commissioned a survey which suggested 2.6 million leisure journeys by car will be made on Good Friday.
Meanwhile, at least three major airports have said that the coming days will be their busiest-ever Easter weekend while 493 different pieces of planned engineering works are set to take place on the railways.
Yellow weather warnings for rain and strong winds were issued across parts of the south of England and Northern Ireland respectively on Thursday.
The caution for the south of England expired at 11.59pm on Thursday while the warning for Northern Ireland said “a few” homes and businesses could be flooded and is in place until 3am on Friday.
The unsettled conditions are expected to continue into Easter, as the bank holiday weekend leads into a two-week break for many schools.
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Sky News weather producer Joanna Robinson said Good Friday will be less windy than Thursday, with a few showers around on Saturday and Easter Sunday, along with pleasant sunny spells.
Temperatures of up to 15C (59F) are expected in west London and 14C (57.2F) in Manchester on Sunday, which is typical for the time of year.