Answer
Many safety programs use a ~30-minute wait after the last thunder (often described with a distance rule of thumb). Exact Beach Patrol hold times are the authority on Ocean City sand—follow their all-clear, not a phone timer alone.
Do not return because rain lightens while thunder still rolls. Pool decks and open Boardwalk stretches remain exposed.
Sources: Ocean City Beach Patrol · 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.
