It isn't just about the water temperature - it is whether the sun is baking down on you and warm enough to dry you out. I live in Scotland now, so anything is warm by comparison, but I have tropical climate blood and HATE being cool. DD on the other hand is used to the cooler climate (I dont think I will ever adapt to the lack of heat ...) and she wants to swim all the time. April this year was great weather wise and certainly warm enough for swimming, but I found standing around in the water or doing those long leisurely floating rivers in the water parks (way too much shade for my liking) had me dashing out for a hot coffee while everyone ordering slushies looked at me as if I were insane. Yes, it is definitely what you are used to.