Nantucket County Swell ForecastUnited StatesMANantucket County3.3ftSSiasconset3.3ft, S2.3ftSEGreat Point2.3ft, SECisco BeachCoatueDionisEsther IslandGreat PointJetties BeachMiacomet BeachMuskeget IslandQuidnetSankaty Head LighthouseSiasconsetSquamSurfside NantucketTom NeversTuckernuck IslandWauwinet