I live 1,125 feet from the beach (375 yards for those who golf). The hot air hit me as soon as I walked out of my house. Thankfully, the beach has a separate weather system. The cool air hanging over the ocean could be felt as soon as I reached the beach path.
During my walk, there was a constant battle between the steady south west wind and the cooler ocean air. The swirl of hot and cool surrounded me- with the hot air winning the battle once the sun broke through the clouds.
Keep cool- sit by the water, and root for the sea breeze!