Warm weather hits the UK and Ireland

A rainbow appears in the spray as children play in fountains outside the Southbank Centre in London
Photograph: Leon Neal/AFP/Getty Images

A fisherman casts his line in the hope of catching a rainbow trout at Syon Park Fishery, near Brentford
Photograph: Adrian Dennis/AFP/Getty Images

A marmoset enjoys a date-filled ice-cream at Blair Drummond Safari Park near Stirling
Photograph: Andrew Milligan/PA

People picnic in St James's Park in London
Photograph: Ian Nicholson/PA

Cricket fans soak up the very hot weather during a match in Bath
Photograph: Jed Leicester/Getty Images

A visitor to Brighton beach in east Sussex soaks up the sun
Photograph: Gareth Fuller/PA

People cool off in the Trafalgar Square fountains in London
Photograph: Ian Nicholson/PA

A man suns himself at Southport beach, Merseyside
Photograph: Peter Byrne/PA

People enjoy the sun at Southport beach, Merseyside,
Photograph: Peter Byrne/PA

Brighton beach, east Sussex, busy with visitors enjoying the sun
Photograph: Gareth Fuller/PA

A woman enjoys an ice-cream on Hampstead Heath, north London
Photograph: Johnny Green/PA

People enjoying leisure activities along the embankment in Nottingham
Photograph: Lewis Stickley/PA

Spectators enjoy the warm weather at Goodwood racecourse in Chichester
Photograph: Jan Kruger/Getty Images

A young girl cools down among the fountains of London's South Bank
Photograph: Andy Rain/EPA

Fisherman at Conkers in south Derbyshire
Photograph: Rui Vieira/PA

Spectators enjoy the hot weather during the third round of the BMW PGA Championship at Wentworth golf club, Surrey
Photograph: Anthony Devlin/PA

A child plays in the fountains in Nottingham's Old Market Square
Photograph: Lewis Stickley/PA

People enjoy the sun at Mercia Marina in south Derbyshire
Photograph: Rui Vieira/PA

Seven-month-old Leila Gilmour enjoys a cool bath in her back garden in Bannockburn, Scotland
Photograph: Andrew Milligan/PA

A sunbather enjoys the hottest day of the year in St James' Park, London
Photograph: Graham Turner

A chimpanzee sucks on a block of ice at Chester zoo
Photograph: Phil Noble/Reuters

Isla Stanton, three, collects bluebells near Ashford in Kent
Photograph: Gareth Fuller/PA

A man enjoys the hot weather in Leith near Edinburgh
Photograph: Danny Lawson/PA

A sea lion is cooled down by head sea lion keeper, Frances Reid, at Blair Drummond Safari Park near Stirling
Photograph: Andrew Milligan/PA

Cyclists enjoy the warm weather on Nottingham's river Trent
Photograph: Rui Vieira/PA

People enjoy the hot weather at Cullercoats in North Tyneside
Photograph: Owen Humphreys/PA

People enjoy the warm weather on the Victorian pier at Clevedon, north Somerset
Photograph: Barry Batchelor/PA

A family enjoy the warm weather on Sandymount beach in Dublin
Photograph: Niall Carson/PA