What kind of wetsuit in Cozumel?
Everyone’s tolerance is different. I’ve been to Cozumel several times and have only worn a diveskin and have had no problem. I will say though that many, if not most, people do wear a full wetsuit. I would say a 3 mm is the most common. I typically did 2 dives a day in Coz. When I do more than that I do tend to get a little cold and will wear my shorty. If you are going in the summer, the water temps are usually in the 82-85 degree range. Plenty warm. Hope you have a great trip. Coz is one of my favorite places.