Nantucket County Swell ForecastUnited StatesMANantucket County3.9 ftSSiasconset3.9 ft, S2.6 ftWSWGreat Point2.6 ft, WSWCisco BeachCoatueDionisEsther IslandGreat PointJetties BeachMiacomet BeachMuskeget IslandQuidnetSankaty Head LighthouseSiasconsetSquamSurfside NantucketTom NeversTuckernuck IslandWauwinet