Any divers know what the water temp should be in mid November (15th-21st) Carnival Splendor.   Interested in diving in Cabo just wnat to know what I should bring shorty, skin, or  t-shirt and shorts. Any help GREATLY appreciated. 

The water temperature at the end of December was in the high 60s to mid-70s. It won't be much warmer a month earlier.

If you do the dive excursion through the ship (using Underwater Diversions de Cabo), they will provide the 7mm full suit for you as part of the cost.

~ MattInSoCal