Derby (R) the dog jumps off the board as Teddy looks on in the dog tandem event during the World Dog Surfing Championships at Linda Mar Beach in Pacifica, Calif., Aug. 5, 2017.
John G. Mabanglo/EPA
Two men take in the sun at the fountains by the Unisphere steel structure at Flushing Meadows-Corona Park, Aug. 22, 2017, in the Queens borough of New York City.
Drew Angerer/Getty Images
Tourists on summer vacation, Aug.8, 2017, in Benidorm, Spain.
A cracked riverbed, due to the drought in the Guadalteba reservoir, in Los Campillos, Spain, Aug. 9, 2017.
Jorge Guerrero/AFP/Getty Images
Sunset in the harbor of Saint-Malo, northwestern France, Aug. 22, 2017.
Charly Triballeau/AFP/Getty Images
Zhang Wendong inspects his crops of sorghum in Wangyu Village of Zaozhuang City, east China's Shandong Province, Aug. 23, 2017.
Standup paddlers at the shore of Lake Lupa during a sunset in northern Budapest, Hungary, Aug. 4, 2017.
A crowd of people pack the beach in Rabat, Morocco, July 23, 2017. Moroccans and tourists took advantage of beautiful summer weather to enjoy the beach.
An aerial view taken with a drone shows people taking in the sunshine and sea on a beach in Guzelcamli district in Aydin, Turkey, Aug. 4, 2017.
A sunflower stands in a field for self pickers in Friedrichsdorf near Frankfurt, Germany, Aug. 2, 2017.
Lavender farm worker, Danielle Folland, 23, picks one of 20 varieties of lavender from the garden area at a family run farm near Radstock, south west England, July, 7, 2017, as the hot weather continues across the U.K.
Ben Birchall/PA via AP
A man walks through a refreshing water spray in Market Square in Krakow, Poland, June 26, 2017.
Aerial photo taken on July 25, 2017 shows the scenery of Huanghai National Forest Park in east China's Jiangsu Province.
A man jumps into the river of Mirusha, during the heat wave in Mirusha, Kosovo, Aug. 6, 2017.
People sunbathe during warm weather at a public area in Prague, Czech Republic, Aug. 1, 2017.
A hot air balloon flies over the Yenidze, a former tobacco factory, at sunset, in Dresden, Saxony, Germany, Aug. 7, 2017.
A boy plays on a children's slide in Aqiuwan Water Park in Hefei City, capital of east China's Anhui Province, July 19, 2017.
A fly and an ant feed on chamomile nectar in a field on the outskirts of Minsk, Belarus, July 21, 2017, during a sunny summer's day.
A druid waits for the sun to set during the summer solstice festival at Stonehenge, Salisbury, U.K., June 20, 2017. The annual festival attracts hundreds of people to the 5,000-year-old stone circle to mark the longest day in the northern hemisphere.
Thousands of beachgoers escape to Coney Island and literally pack the beach on Independence Day, July 4, 2017, in Brooklyn, New York.
Richard B. Levine/Newscom
The annual Macy's NYC fireworks show is seen over Manhattan from Union City, N.J., on the Fourth of July.
Robert Deutsch-USA TODAY Sports
The reds and blues of the flowers, mixed with the varying shades of green in the fields, provided a stunning backdrop in Castelluccio di Norcia, in the Italian region of Umbria, July 6, 2017. Poppies, violets and narcissus plants transform the lentil fields each year in this wide open space, creating the look of a painter's portrait.
Guiseppe Vergerio/Solent News/Splash News
A child tries to beat the summer heat by splashing in a water fountain at a Tokyo park in Tokyo, Japan, July 8, 2017.
Plastic ice cream cones can be seen at the Gelato World Tour in Berlin, a competition of the 16 best ice cream manufacturers in Germany, July 7, 2017.
Maurizio Gambarini/dpa Photo via Newscom
A woman wearing a flower diadem attends the traditional pagan holiday of Ivana Kupala in Kiev, Ukraine, July 6, 2017. Ivana Kupala is celebrated, during the summer solstice, on the shortest night of the year, marking the beginning of summer and is celebrated in Ukraine, Belarus, Poland and Russia on the night of July 6.
James Lichtenstein, of Chicago, dives from an 85-foot-tall platform into a 9.5-foot pool during a performance by the Firemen High Dive Show at the State Fair Meadowlands carnival, July 6, 2017, in East Rutherford, N.J.
Megan Moussamih reads in the shade of the Echo Park Lake, July 8, 2017, in Los Angeles. An excessive heat wave in Southern California set records in several cities, breaking a mark set for the date in Los Angeles 131 years ago, the National Weather Service said.
An aerial view of the sailboats after the start of the 49th Blue Ribbon round-the-lake international yachting race around Lake Balaton in Balatonfuered, 77 miles southwest of Budapest, Hungary, July 6, 2017.
People practice standup paddleboard yoga, or SUP yoga, on the Adriatic coast in Verudela, Croatia, July 10, 2017.
With the double rainbow in the background, Auburn and Marcellus 5th and 6th grade Upstate Lacrosse Association teams play a game at Auburn High School in Auburn, N.Y., June 27, 2017.
Kevin Rivoli/The Citizen via AP
A woman adjusts her hat as she stands amid blooming sunflowers at the Olympic Forest Park in Beijing, July 10, 2017.
Vasil Kiryienka of Belarus riding for Team Sky rides in the peloton during stage 7 of the 2017 Le Tour de France, a 132-mile stage from Troyes to Nuits-Saint-Georges, on July 7, 2017, in Nuits-Saint-Georges, France.
Chris Graythen/Getty Images
People ride the Sky Ride at the State Fair Meadowlands carnival, July 9, 2017, in East Rutherford, N.J.
Sculptor Mikolaj Jerczynski works on his sand sculpture depicting Jack Sparrow during the 5th Sand Sculpture Festival 2017 in Szczecin, Poland, July 12, 2017.
People cool off in a swimming pool in Yangzhou, Jiangsu province, July 12, 2017, in China.
Artyom Golovin wakeboards on the Yemelyanovo Lake Park on a hot summer day, with the air temperature at 80 degrees Fahrenheit, outside the village of Yemelyanovo in Krasnoyarsk region, Russia, July 13, 2017.