December Water Temperatures
The month of December is characterized by essentially constant daily high temperatures, with daily highs around 82°F above the surface throughout the month, exceeding 86°F or dropping below 77°F only one day in ten.
Below the surface the December water temperatures last year averaged 80 degrees f. at depth.
2 mil wet-suits seem to do the trick.
Where we get chilly is the boat ride back to shore. A windbreaker or light jacket for the boat ride feels good.