 Federally, Shelter Cove is in .Shelter Cove has a warm-summer Mediterranean climate (Köppen "Csb") typical of the North Coast, that is characterized by warm (but not hot) dry summers, and mild to chilly rainy winters.In Shelter Cove's case the climate is moderated by the proximity to the Pacific Ocean with small temperature variations on average throughout the year, which results in mild year-round temperatures, although some winter months can get quite cool at times.