Summer heat arrives

Swimmers jump into the water from a breakwater on a hot day in Barcelona, Spain, Sunday. AP-Yonhap

Karson Alley, 5, son of Kayla Meadows, of Coal City, cools down as the temperature reaches 33 degrees Celsius at the Splash Pad at Lake Stephens in Surveyor, W.Va., June 23. AP-Yonhap

A woman swims in the waters of the Magellan Strait during the annual "Splash of the Strait" event in Punta Arenas, Chile, Saturday. AP-Yonhap

A boy swims in the Euphrates River in the village of Um Khashm, southeast of the Iraqi holy city of Najaf, Friday. AFP-Yonhap

A dog is splashed with water from a grass sprinkler during hot weather in Parliament Square in London, June 19. EPA-Yonhap

Children play in a fountain at Karlsplatz square in Munich, Germany, Sunday. AFP-Yonhap

Boys splash water on each other to cool off on a hot summer day in Srinagar, in Indian-controlled Kashmir, June 24. AP-Yonhap

People swim in the river Spree to demand the lift of the 100-year-old swimming ban in the river in Berlin, Germany, June 17. AP-Yonhap

A bird bathes in a water fountain in New York City, June 23. Temperatures climbed in the city as the first heat wave of the year moves through parts of the U.S. Midwest and East Coast. AFP-Yonhap

People cool off in a fountain in Bonn, Germany, June 21. AP-Yonhap

A picture taken with a drone shows people swimming and sunbathing at London Fields Lido during a warm day in London, June 25. EPA-Yonhap

A man dives into the sea during warm weather, as high temperatures continue in Brighton, England, Sunday. Reuters-Yonhap

A man gives a dog some water from a public fountain during high temperatures in Madrid, Spain, June 17. AP-Yonhap

Swimmers take part in the annual nude winter solstice swim during Hobart's Dark Mofo festival at Long Beach in Hobart, Australia, June 21. EPA-Yonhap

A child plays in a fountain in London, as a heat wave passes through the city, June 20. AP-Yonhap

Kids cool off in the mist from a fountain as temperatures approach 37 degrees Celsius, June 20, in Kansas City, Mo. AP-Yonhap

A person cools down in a fountain at the Place de la Concorde as hot summer temperatures hit Paris, June 21. Reuters-Yonhap

People cool off in Crown Fountain in Millennium Park as temperatures climbed to over 35 degrees Celsius in Chicago, June 21. Excessive heat is expected in the area for the next few days. AFP-Yonhap

A young woman jumps into the river Rhine to cool off during high temperatures, near Kaiserstuhl, Switzerland, June 22. AP-Yonhap