Shallow waters off south Florida topped 100 degrees Fahrenheit (37.8C) for several hours on Monday, potentially setting a new world record with temperatures more commonly associated with hot tubs.
The readings were taken from a single buoy in Manatee Bay, about 38 miles (60 kilometers) southwest of Miami, at a depth of five feet (1.5 meters).
A peak temperature of 101.1F was recorded at 6:00 pm, official data showed.
The previous known high might have been 99.7F recorded in Kuwait Bay.