The Newland House in Huntington Beach, Ca is a great place for your wedding and reception. Just a mile or so from the beach, there is always a nice breeze and even in September you can get some great photos. The house itself is not open for weddings but there is a converted barn behind it, very nice lawn area for dining and a very small gazebo.
Overall this location is quaint and well taken care of. I am not sure if they offer catering or not but give them a call and take a tour.