The weather in Cambria is very consistent.  The temperature and wind are almost exactly predictable.  Other than morning fog, it is bound to be sunny all summer.  The dry months are from April-October.  The wetter months are November-March.  Average high temperatures in fahrenheit: Jan (62), Feb (62), Mar (62), Apr (63), May (63), Jun (64), Jul (65), Aug (66), Sep (68), Oct (69), Nov (66), Dec (62).  It will be windy almost every day, being coastal.  Bring a windbreaker, jeans, sweaters.  Leave the bathing suit and tank-tops at home (unless your accomodation has a heated pool, of course).  But, neither should you pack a winter coat, unless you're a desert-dweller normally.