im not that far from disneyland.. like others said before, the weather sometimes has a mind of its own-but for the most part it is cool. I would dress in layers.. so you can wont be too hot or cold.(i have family up north-morgan hill/san jose/hollister) they tend to be much cooler than us, but i would say during the day usually 60's-low70's..and at night 40-50's(average) Like i said before-LAYERS, because at night it will most definatley be much colder!! But xmas time at disneyland is so neat-you will have so much fun-ENJOY!! if you need any other info. on fun things to do while you are here-let me know!!
