When we spent a weekend in St. Peter Ording at the North Sea lately, the weather was very odd. There was no wind, whatsoever, but thick, standing fog. It was cold, too.
Well, February is not spring time, but I have not really ever seen the North Sea without wind.
St. Peter-Ording is know for its great and really large beaches and the pole houses on them, safe from the tides, providing the rescue-forces place, restaurants, restrooms and such out there on the beach.