Wave Heights

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

This Afternoon
This Afternoon<br>Showers likely, with thunderstorms also possible after 3pm.  Cloudy, with a high near 64. East wind around 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
SundaySunday<br>A chance of showers before 8am, then a chance of showers after 9am.  Patchy fog before 11am.  Otherwise, mostly cloudy, with a high near 70. Northwest wind 5 to 7 mph becoming south in the afternoon.  Chance of precipitation is 30%. New precipitation amou
Monday<br>A slight chance of showers before 9am, then a slight chance of showers after 10am.  Mostly cloudy, with a high near 67. North wind 9 to 14 mph, with gusts as high as 26 mph.  Chance of precipitation is 20%.
Tuesday<br>Sunny, with a high near 71.
Wednesday<br>Mostly sunny, with a high near 75.
Thursday<br>A chance of showers.  Partly sunny, with a high near 74. Breezy.  Chance of precipitation is 30%.
Friday<br>Mostly sunny, with a high near 77.
12AM-10mph from the SE
03AM-11mph from the ESE
06AM-13mph from the ESE
12PM-10mph from the E
03PM-10mph from the E
06PM-8mph from the ESE
12AM-6mph from the SW
03AM-6mph from the W
06AM-6mph from the NW
12PM-6mph from the SSW
03PM-7mph from the S
06PM-9mph from the S
12AM-6mph from the WSW
03AM-7mph from the WNW
06AM-9mph from the NNW
12PM-13mph from the N
03PM-13mph from the NNE
06PM-13mph from the NNE
12AM-8mph from the N
03AM-8mph from the N
06AM-8mph from the NNW
12PM-6mph from the SW
03PM-7mph from the SW
06PM-10mph from the SSW
12AM-13mph from the SW
03AM-13mph from the SW
06AM-13mph from the SW
12PM-16mph from the SSW
03PM-17mph from the SSW
06PM-17mph from the SSW
12AM-20mph from the SSW
03AM-21mph from the SSW
06AM-22mph from the SSW
12PM-22mph from the SSW
03PM-21mph from the SSW
06PM-18mph from the SSW
12AM-14mph from the SW
03AM-13mph from the SW
06AM-11mph from the SW
12PM-14mph from the SSW
03PM-14mph from the SSW
06PM-14mph from the SW

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