DEL MAR, Calif. (KGTV) — San Diegans looking to escape the heat at the beach Thursday may have had trouble cooling off in the water, at least in Del Mar.
Water temperatures in Del Mar hit 81 degrees during the day, as this week's heat wave brought another day of high heat to the county.
By comparison, the monthly mean for July off Scripps Pier has been 67 degrees Fahrenheit, according to the National Oceanic and Atmospheric Administration (NOAA).
RELATED: Live weather conditions in San Diego
However, in Solana Beach and Mission Beach NOAA figures reported ocean temperatures at 71 degrees Thursday.
Despite the stark difference between the beaches, Del Mar lifeguards said they had complete confidence in the tools they use to record ocean temperatures.
"We've had high 70s for about three weeks now. Today's the first day it's been over 80. You see it's 82 pretty consistently," one lifeguard told 10News photographer Ginny Creighton as he recorded the water temperature.
Though the worst of the heat wave was over by Thursday, temperatures inland hit between 85 and 98 degrees. Along San Diego's coast, 74 and 83 degrees. An excessive heat warning is still in effect through Friday night.