Big Tides = Cooler Water?

The forecast is calling for light winds but it appears that the thermals have been giving our wind a good boost out at the kiddie pool. I had blogged earlier that I wasn't counting on the thermals much because the water temp had risen lately, but that has been reversed. I am guessing that the big tides that were the result of the "Big Moon" that we just had stirred up the sea a bit and brought up some colder water from down deep. Both of the charts that I refer to for water temperatures show surface temperature of about 65. That's 5 degrees colder than a week ago.