Answer
May water temps often need short dips or wetsuits for kids; September is warmer after summer heating. Lifeguard schedules may be shorter than July—swim only when guards are on duty and flags allow.
Sources: Ocean City Beach Patrol · National Weather Service · Visit Ocean City
Editorial visitor guidance for Ocean City, Maryland. Confirm current Town of Ocean City, Maryland DNR, NPS Assateague, and NWS rules when regulations or safety apply.
