Wave Heights

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

Tonight<br>Partly cloudy, with a low around 75. Southwest wind around 11 mph.
Sunday NightSunday Night<br>A slight chance of showers and thunderstorms between 9pm and 1am.  Partly cloudy, with a low around 71. West wind 7 to 9 mph becoming northwest after midnight.  Chance of precipitation is 20%.
Monday Night
Monday Night<br>A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 4am, then a chance of showers and thunderstorms after 4am.  Cloudy, with a low around 69. Southeast wind 8 to 10 mph.  Chance of precipitatio
Tuesday Night
Tuesday Night<br>A chance of showers before 1am.  Mostly cloudy, with a low around 65. North wind 5 to 7 mph becoming light and variable  after midnight.  Chance of precipitation is 40%.
Wednesday Night
Wednesday Night<br>Partly cloudy, with a low around 67. South wind around 7 mph becoming west after midnight.
Thursday Night
Thursday Night<br>Mostly clear, with a low around 67. South wind around 7 mph becoming west after midnight.
Friday Night
Friday Night<br>Mostly clear, with a low around 68. South wind around 8 mph.
12AM-11mph from the WSW
03AM-9mph from the WSW
06AM-9mph from the W
12PM-6mph from the SW
03PM-9mph from the SSW
06PM-11mph from the SSW
12AM-11mph from the WSW
03AM-10mph from the WSW
06AM-10mph from the WSW
12PM-11mph from the WSW
03PM-11mph from the WSW
06PM-10mph from the WSW
12AM-8mph from the NW
03AM-6mph from the NNW
06AM-7mph from the N
12PM-9mph from the ENE
03PM-10mph from the E
06PM-10mph from the SE
12AM-9mph from the SSE
03AM-9mph from the S
06AM-9mph from the SW
12PM-13mph from the W
03PM-13mph from the NW
06PM-9mph from the NNW
12AM-3mph from the NE
03AM-3mph from the ENE
06AM-5mph from the ESE
12PM-5mph from the S
03PM-5mph from the S
06PM-7mph from the SSW
12AM-7mph from the W
03AM-8mph from the WNW
06AM-9mph from the NNW
12PM-7mph from the NNE
03PM-7mph from the ENE
06PM-7mph from the S
12AM-7mph from the WSW
03AM-7mph from the W
06AM-7mph from the WNW
12PM-8mph from the SSE
03PM-8mph from the SSE
06PM-8mph from the S

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