I was married in San Pedro October 22, 2005 during Hurricane Wilma. Was an amazing trip. Couldn't snorkel or anything like that, but honestly, I wouldn't have changed it one bit. There were so few people on the island as many had evacuated, that we kind of had the place to ourselves and we had a great camaraderie with those locals who stayed behind as well.
I have no problems booking an October trip and in fact, I'm going back for my anniversary this year.