Nantucket County Swell ForecastUnited StatesMANantucket County4.3ftSSiasconset4.3ft, S3ftNWGreat Point3ft, NWCisco BeachCoatueDionisEsther IslandGreat PointJetties BeachMiacomet BeachMuskeget IslandQuidnetSankaty Head LighthouseSiasconsetSquamSurfside NantucketTom NeversTuckernuck IslandWauwinet