We had a blast tenting with some friends in September!  While the evenings got cool, the fire pits were great, the other campers were all friendly to us, and the facilities were more than adequate.  Our site was level and clean.  We loved the beach area even though it was too chilly for a swim, the ambiance of smelling campfires while watching the rolling waves crash in was great!  Several great places for a hammock as well!