Nantucket County Swell ForecastUnited StatesMANantucket County2.6ftNESiasconset2.6ft, NE2.3ftNEGreat Point2.3ft, NECisco BeachCoatueDionisEsther IslandGreat PointJetties BeachMiacomet BeachMuskeget IslandQuidnetSankaty Head LighthouseSiasconsetSquamSurfside NantucketTom NeversTuckernuck IslandWauwinet