It really gets colder at the moment and we have a real fall feeling. It's late in the year for this, but as we are in California, I'm not really surprised. November was a wonderful month, sometimes cold (okay, a bit cooler), but mostly sunny.
December gets way more rain now, about every second day at the moment. Still I was riding my bicycle to work today.
One of the really nice things of fall are the crazy colors at some times. See the attached picture (click it for a large version).