Great Egg Rock Swell ForecastUnited StatesMAEssex CountyGreat Egg Rock1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIGreat Egg Rock swell forecast issued today at 1:44 am. Next forecast at approx. 1:44 am. Wave Height Sea TemperatureGet WillyWeather+ to remove ads