Nantucket County Swell ForecastUnited StatesMANantucket County2.3ftSWSiasconset2.3ft, SW1.6ftEGreat Point1.6ft, ECisco BeachCoatueDionisEsther IslandGreat PointJetties BeachMiacomet BeachMuskeget IslandQuidnetSankaty Head LighthouseSiasconsetSquamSurfside NantucketTom NeversTuckernuck IslandWauwinet