Answer
Summer days run mid-morning through evening with weather holds for lightning—hours shrink in May and September. Arrive at opening for shorter slide lines before noon heat and bus tour arrivals.
Sources: Jolly Roger Amusement Park · Visit Ocean City · National Weather Service
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.
