Britain's hot spell is set to continue for most areas this week.
It will be largely dry, warm and sunny with temperatures hovering in the low to mid 20s, several degrees warmer than the May average, the Met Office said.
It will be a wet start to the week for Northern Ireland and western Scotland however, but the showers and clouds should largely clear by Wednesday.
The balmy conditions have swept in on a high pressure system, dragging in hot air from the continent, meteorologist Greg Dewhurst said.
Scattered showers across England and Wales should largely die away by Monday night, though there is a risk of some isolated thunderstorms across central and southern England throughout the week.
As the days progress it will grow cooler along the North Sea coasts owing to a northeasterly wind.
Mr Dewhurst said: "On Sunday we had a high of 24C (75F) and that was in Sheffield and the day before we had 23C (73F) - usually in May we expect highs of around 17C (63C).
"Temperatures in the low to mid 20s should continue for this week, with quite widespread warmth across the country.
"But an easterly wind will make it feel a bit cooler across the North Sea coast as we move on.
"UV (ultra violet) levels are generally high across the UK as well, so people should make sure they're protected from the sun."