The water temperatures vary from place to place and season to season. In the shallow north the temperatures are fairly uniform in relationship to depth but vary quite a bit depending on the time of the years: 75 degrees F (24 degrees C) in the summer to as low 30 degrees F (-1 degree C) in the winter. The deeper water in the south varies according to the season and depth. At the surface the water 81 degrees F (27 degrees C) in the summer and reaches a low of 48 degrees F (9 degrees C) in the winter but is a constant 41 degrees F (5 degrees C) at a depth of 1,300 feet (400 meters).
