What else can you do in Monterey CA? ANd weather in November?

Hi, its my boyfriend and I anniversary and we are thinking of going back to monetary, we went in august. We loved it. its beautiful but not sure if we should go again soo soon. we went to the aquarium last time. what else is there to do? and what will the weather be like? or can u suggest somewhere else nearby..or anywhere in nor cal.. we are a young couple. thanks