Del Mar is good year-round, but the peak season runs from June through September when the beach is at its best and the racetrack is operating. July and August bring the heaviest crowds and highest accommodation prices.
The racing season (late July through early September) is the most festive time, but it makes the town significantly busier and pricier. Spring and early summer — May and June — offer comfortable weather, fewer people, and the occasional whale sighting from the bluffs. Winter is quiet but pleasant, with mild temperatures and uncrowded beaches.