Answer
Late spring through early fall brings the most reliable warm-water sightings—dolphins are wild animals with no guarantee any day. Morning calmer water helps spotting; afternoon chop makes fins harder to see. Shoulder weeks thin crowds without ending tours.
Sources: Visit Ocean City · Maryland DNR · NWS Wakefield / NOAA
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.
