Britons flocked to parks and beaches as the hottest temperature of the year so far was recorded.
The mercury rose to 23.9C (74.66F) in Santon Downham in Suffolk, beating yesterday's high of 23.7C (75.02F) recorded in Pershore College in Worcestershire.
Today's sunny weather meant the UK was warmer than Athens and Rome, which both had temperatures of 21C (69.8F) recorded.
Forecasters said tomorrow could be even warmer and reach 25C (77F), with bookmakers slashing their odds to just 4/7 that it will reach 26C (80F).
More top news
New travel report looks at best value European city break destinations for UK tourists.
The bodies of two other crew members from the helicopter that crashed into the Atlantic over a week ago have yet to be recovered.
The man who sold himself to Americans as the ultimate deal-maker has had to back down over his planned healthcare reforms.