San Diego (the city) barely escapes the semi-arid/arid designation, placing it slightly within the CSa / Mediterranean climate[0] designation. But it is surroun

San Diego (the city) barely escapes the semi-arid/arid designation, placing it slightly within the CSa / Mediterranean climate[0] designation. But it is surrounded by BSh areas (the Sonoran desert and California chaparral) - by area, I'd guess most of San Diego county is BSh. So unless you want to live right next to the coast (and can afford to), Southern California is mostly desert. San Diego itself really does have an amazing climate though. [0] See: https://en.wikipedia.org/wiki/K%C3%B6ppen_climate_classification https://en.wikipedia.org/wiki/K%C3%B6ppen_climate_classifica...