Nantucket County Swell ForecastUnited StatesMANantucket County3ftSWSiasconset3ft, SW3ftSSWGreat Point3ft, SSWCisco BeachCoatueDionisEsther IslandGreat PointJetties BeachMiacomet BeachMuskeget IslandQuidnetSankaty Head LighthouseSiasconsetSquamSurfside NantucketTom NeversTuckernuck IslandWauwinet