Bill,
There are fewer and fewer businesses, stores and restaurants that "close for the season" now. You'll find that most do go to a weekends only schedule, and there are the handful of stores and restaurants that do close for the season..... but not many anylonger. The amusement parks do close outside rides for the season in and around the this time of year... usually after Sunfest... it depends on the weather. Other than that, you'll find that September in Ocean City is a perfect time to visit.
Answered: September 05, 2010