Nantucket County Swell ForecastUnited StatesMANantucket County3.3ftSESiasconset3.3ft, SE2.6ftSEGreat Point2.6ft, SECisco BeachCoatueDionisEsther IslandGreat PointJetties BeachMiacomet BeachMuskeget IslandQuidnetSankaty Head LighthouseSiasconsetSquamSurfside NantucketTom NeversTuckernuck IslandWauwinet