Wave Heights

Near Shore Wave Height Forecast
*Massachusetts surf and weather forecast based on Coast Guard Beach

Overnight<br>Mostly clear, with a low around 35. South wind around 9 mph.
Thursday NightThursday Night<br>Rain, mainly after 11pm.  Patchy fog after 1am. Low around 40. Breezy, with an east wind 14 to 20 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Friday Night
Friday Night<br>A chance of rain showers before 3am, then a chance of snow showers.  Mostly cloudy, with a low around 34. Breezy, with a west wind 20 to 23 mph, with gusts as high as 39 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday Night
Saturday Night<br>Partly cloudy, with a low around 33. Breezy, with a northwest wind around 21 mph, with gusts as high as 36 mph.
Sunday Night
Sunday Night<br>Mostly clear, with a low around 38. West wind 11 to 14 mph.
Monday Night
Monday Night<br>A chance of showers.  Mostly cloudy, with a low around 31. West wind 8 to 15 mph becoming north after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 30%.
Tuesday Night
Tuesday Night<br>Mostly cloudy, with a low around 30. North wind 10 to 13 mph, with gusts as high as 23 mph.
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03AM-23mph from the N
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12PM-17mph from the NNE
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How this works

This chart shows you 7-days worth of swell/weather/wind information all in place. You have “incoming swell” (in feet) charted by the blue line on the gray graph. You have the weather icons for each day below the graph and you have the wind, speed and direction represented by the directional arrows topped by a blue “wind strength” indicator.

These nearshore wave height forecasts are custom built for each surf region using an average/above-average indicator break as a focal point. These forecasts aren’t just some knock-off of a generic Wavewatch III spectral point being regurgitated, these are true nearshore forecasts that use proprietary algorithms factoring in things like swell windows, island shadowing, bathymetry data, swell-period travel time, and other critical forecast components that tune the nearshore forecast specifically for your region, giving you a good solid overview of incoming swell, weather and wind, so that you can go out and find the best spot to score.

Massachusetts Offshore Swell Forecast

How this works

The Offshore Swell Forecast shows you the 7-day forecast starting at the current time and going out from the latest forecast run. Mousing over any part of the graph (any line including the solid shaded area in the background) will pop up a new box near your pointer that shows the DATE/TIME/COMBINED BUOY HEIGHT in the top of the box, and then the specifics of the line you are hovering over like SWELL HEIGHT, SWELL PERIOD, SWELL DIRECTION (both in Simple Compass direction, like Northwest, and specific degrees 308). If you follow the contour of the line you can see hour by hour how that swell behaves over the course of the forecast period.

*Note: clicking on an individual swell in the legend of the chart you can “hide” that data stream making the chart easier to navigate