Yeah, this happened to me in Chicago. I was fine in the water, so I'm going to guess the water was in the 60s. But after a while one of my leaner companions cli

Yeah, this happened to me in Chicago. I was fine in the water, so I'm going to guess the water was in the 60s. But after a while one of my leaner companions climbed up on the bit of the bow railing still above water to try to get warmer, so I doubt the water was in the 70s. I moved to the SF Bay not long after, so you clearly get why I haven't done much sailing here. I did a triathlon swim here plus some bay training, and the cold water is a real shock to the system.