Nantucket County Swell ForecastUnited StatesMANantucket County3.3ftSSWSiasconset3.3ft, SSW3.3ftSSWGreat Point3.3ft, SSWCisco BeachCoatueDionisEsther IslandGreat PointJetties BeachMiacomet BeachMuskeget IslandQuidnetSankaty Head LighthouseSiasconsetSquamSurfside NantucketTom NeversTuckernuck IslandWauwinet