If we don't have a cold front and if you are from north of I 10 it will be warm enough. The most fun thing to do is the glass bottom boat snorkel excursion. Three reefs, three hours, all snorkel equipment included, masks , fins, snorkels, vests, beer, water, cokes, and an in the water guide for $35 pp. We booked through firstname.lastname@example.org and had a great time. Best deal going!
Mexico water temp is still warm but not Bahamas! We went to Bahamas to cruiselines private island and the water was like ice! There was hundreds of old, young and kids swimming and snorkeling and it took all we had to just get in to our knees to cool down?! Then when you got out, you legs were numb from the cold! What were these people on, we kept asking ourselves?