Nantucket County Swell ForecastUnited StatesMANantucket County2.3ftSESiasconset2.3ft, SE2ftESEGreat Point2ft, ESECisco BeachCoatueDionisEsther IslandGreat PointJetties BeachMiacomet BeachMuskeget IslandQuidnetSankaty Head LighthouseSiasconsetSquamSurfside NantucketTom NeversTuckernuck IslandWauwinet