Actually it is very common to reach that kind of temperature just below the surface of the water and down a few inches if the water is calm and undisturbed.
What is unusual is for the buoy to be in calm and undisturbed water. Temperature isn't the issue.
Actually it is very common to reach that kind of temperature just below the surface of the water and down a few inches if the water is calm and undisturbed.
What is unusual is for the buoy to be in calm and undisturbed water. Temperature isn't the issue.