Baja Nomads forum must have more local info. They are mostly in homes and cabins though, not in RV, so their perception of warm and cold might be different. It's usually just one or two degrees warmer in Northern Cortez sea than in South AZ, if at all, so don't count on it. November should be fine, December can be cold after sunset. "Nomads" is a misnomer for that forum, IMO. By definition, nomadic tribes are those that are on the move most of the time, and "Baja Nomads" are not. But they do know RV camps in the area.