Answer
Late May can bring warm sunny days or cool wind and rain—pack layers and a rain backup for Boardwalk plans. Ocean water is still chilly for long swims. NWS hourly forecasts beat optimistic packing lists.
Sources: National Weather Service · Visit Ocean City · Town of 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.
