Yes, I spent two Christmas breaks in Negril, and it was amazing. It is much quieter than it would be over the March Break but it was lively enough to keep us entertained and having fun. I believe there is a street party that takes place in Negril on Christmas Eve or Christmas Day but I've never gone. Most of the resorts decorate and hold special events on Christmas Day (themed activities, entertainment, meals, etc.). There's nothing quite like waking up on the beach on Christmas Day, especially if you're from a cold climate like I am . Oh, and both years the weather was hot hot hot, much more so than we ever experienced in March -- higher humidity!