Sea Temperature — San Francisco

Is it warm enough to swim at San Francisco?

At 14.9°C the water is cold — cold enough that most people want a wetsuit; bracing for a quick dip. Sea temperature lags the seasons, so the warmest water at San Franciscousually comes a month or two after the hottest air, and a cold current or a spell of offshore wind can drop it sharply within a day. This is the surface layer; it's cooler a few metres down.

San Francisco right now