Britons enjoyed the sunshine on Sunday, when temperatures were set to hit the late teens in southern areas.
But forecasters warned the mercury could drop by as much as 10C going into Easter Monday.
Edinburgh Castle at dawn on Easter Sunday (Jane Barlow/PA)A pair of rowers travel along the River Thames at Maidenhead, Berkshire (Jonathan Brady/PA)Cyclists pass a bank of daffodils in Paley Street, Berkshire (Jonathan Brady/PA)People enjoy the sunny weather in Sefton Park, Liverpool (Peter Byrne/PA)Soaking up the rays in Sefton Park (Peter Byrne/PA)Colourful scenes in Stratford-upon-Avon, Warwickshire (Jacob King/PA)Rowing along the River Avon (Jacob King/PA)A woman poses beside a waterfall in the Kyoto Garden at Holland Park, London (Jonathan Brady/PA)21-year-old Amalia Maiden relaxes in a tree in Holland Park (Jonathan Brady/PA)Soaking up the sun on Southsea beach in Hampshire (Andrew Matthews/PA)