Wave Heights

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

This Afternoon
This Afternoon<br>Sunny, with a high near 66. West wind around 6 mph.
SundaySunday<br>Showers and thunderstorms likely before 11am, then a slight chance of showers and thunderstorms after 4pm.  Patchy fog between 7am and 8am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 70. Southwest wind 11 to 17 mph, with gu
Memorial Day
Memorial Day<br>Mostly sunny, with a high near 60. North wind 7 to 13 mph.
Tuesday<br>A chance of showers after 11am.  Partly sunny, with a high near 60. Southeast wind 7 to 13 mph.  Chance of precipitation is 40%.
Wednesday<br>A chance of showers before noon.  Partly sunny, with a high near 60. Southwest wind 11 to 15 mph.  Chance of precipitation is 40%.
Thursday<br>A chance of thunderstorms.  Partly sunny, with a high near 66. South wind 15 to 18 mph.  Chance of precipitation is 30%.
Friday<br>Mostly sunny, with a high near 65. Northwest wind 10 to 14 mph.
12AM-9mph from the NNE
03AM-8mph from the NW
06AM-9mph from the WNW
12PM-7mph from the NW
03PM-7mph from the S
06PM-9mph from the SSW
12AM-13mph from the SSW
03AM-16mph from the SSW
06AM-17mph from the SSW
12PM-13mph from the SSW
03PM-11mph from the SSW
06PM-10mph from the WSW
12AM-9mph from the NW
03AM-9mph from the N
06AM-10mph from the N
12PM-10mph from the NNE
03PM-6mph from the ENE
06PM-5mph from the SE
12AM-3mph from the NNE
03AM-5mph from the NE
06AM-6mph from the ESE
12PM-11mph from the SE
03PM-14mph from the SE
06PM-15mph from the SSE
12AM-13mph from the S
03AM-13mph from the S
06AM-11mph from the SSW
12PM-15mph from the SW
03PM-15mph from the SW
06PM-15mph from the SSW
12AM-16mph from the SSW
03AM-16mph from the SSW
06AM-15mph from the SSW
12PM-18mph from the SSW
03PM-17mph from the SSW
06PM-16mph from the SW
12AM-16mph from the WSW
03AM-15mph from the W
06AM-14mph from the W
12PM-11mph from the NW
03PM-11mph from the W
06PM-13mph from the SSW

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