Nantucket County Swell ForecastUnited StatesMANantucket County2.6ftSSESiasconset2.6ft, SSE2ftESEGreat Point2ft, ESECisco BeachCoatueDionisEsther IslandGreat PointJetties BeachMiacomet BeachMuskeget IslandQuidnetSankaty Head LighthouseSiasconsetSquamSurfside NantucketTom NeversTuckernuck IslandWauwinet