The mercury rose to a scorching 33.3C (91.94F) at Heathrow Airport in west London on Thursday, beating Wednesday's high of 32.6C (90.68F) at the same location. Scotland also had its highest temperature so far this year with the thermometer reaching 30C (86F) in Prestwick.
13.
The seagulls seem to appreciate the return of visitors
14.
Fun in the sea off the Blackpool coast
15.
Heat exhaustion and heatstroke are two of the most serious problems that can develop when the mercury soars but by being prepared you can spot the early warning signs, such as headache and dizziness.