Nantucket County Swell ForecastUnited StatesMANantucket County6.2 ftESESiasconset6.2 ft, ESE5.6 ftEGreat Point5.6 ft, ECisco BeachCoatueDionisEsther IslandGreat PointJetties BeachMiacomet BeachMuskeget IslandQuidnetSankaty Head LighthouseSiasconsetSquamSurfside NantucketTom NeversTuckernuck IslandWauwinet