How thick is your wetsuit for tropical snorkeling? If you wear a wetsuit while snorkeling in warm tropical waters, what thickness do you like? Wetsuit thickness is measured in millimeters, with 3mm and 5mm being common. Suits are often made with more than one thickness, with thicker panels in your core, and thinner ones in the legs and arms, and they may be marketed as 3/2mm, or 5/4mm suit.
Have your warmth needs changed as you have gotten older? Have you always worn a wetsuit while snorkeling?
Do you always wear a wetsuit while snorkeling? If not, how cold does the water temperature need to be to wear it?
One reason we are asking this is because many wetsuit manufacturers provide generic water temperature guides that in many cases seem not very helpful for the snorkeling crowd. For example it is often recommended you may only need a 2mm suit for water temperatures 65-70°F (18-20°C). Personally we would freeze in a 2mm suit, snorkeling for a few hours in those cold waters. Maybe their recommendations are for more athletic activities, like surfing?
Please share your answers as a comment below.