When should a diver consider using a wetsuit?

A wetsuit is designed to provide thermal protection while diving, and it becomes particularly important when water temperatures drop to levels where body heat can be lost quickly. Water temperatures below 21°C (70°F) can lead to hypothermia if a diver is exposed for extended periods. The neoprene material in a wetsuit traps a thin layer of water between the suit and the skin, which is then warmed by the body, creating an insulating barrier that helps retain heat.

Using a wetsuit is most relevant in colder water; therefore, relying on it only for specific temperatures, rather than in every situation, is sensible for divers aiming to balance comfort and safety. While a wetsuit can be useful in various diving conditions, it is particularly crucial in cooler waters to ensure that divers maintain their core body temperature and avoid the risks associated with cold water exposure.