This is the exact same way you would normally find the darkest parts of the image when you're removing any color casts from the shadow areas, but now, thanks to the Difference blend mode, these darkest areas represent the areas closest to midtone gray.
The warmest sea in Key Largo in March is 26Â°C/79Â°F, and the coldest sea temperature in March is 22Â°C/72Â°F. Average water temperature in Key Largo in March is 24Â°C/75Â°F. You can choose any other years:
Siesta Key is blessed with a nearly-perfect subtropical climate. The average temperature is a balmy 74 degrees! Extreme temperatures are moderated by Gulf of Mexico breezes, so that it is rarely under 60 degrees during the winter or over 93 degrees in the summer.