Wave Heights

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

This Afternoon
This Afternoon<br>A chance of snow.  Cloudy, with a high near 37. East wind around 16 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.
SundaySunday<br>Rain.  High near 50. Windy, with a southeast wind 20 to 26 mph becoming southwest in the afternoon. Winds could gust as high as 45 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
M.L.King Day
M.L.King Day<br>A chance of snow showers.  Mostly cloudy, with a high near 19. Windy, with a west wind 22 to 26 mph, with gusts as high as 37 mph.  Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Tuesday<br>Sunny, with a high near 29. Windy, with a northwest wind 20 to 26 mph, with gusts as high as 43 mph.
Wednesday<br>A chance of rain and snow between 9am and 10am, then rain likely.  Mostly cloudy, with a high near 44. Windy, with a southwest wind 14 to 19 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 37 mph.  Chance of precipitation is 6
Thursday<br>Rain likely.  Cloudy, with a high near 50. Windy, with a south wind 10 to 15 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 48 mph.  Chance of precipitation is 70%.
Friday<br>Mostly sunny, with a high near 41. Northwest wind around 14 mph.
12AM-15mph from the WNW
03AM-16mph from the NNW
06AM-11mph from the N
12PM-14mph from the NE
03PM-14mph from the ENE
06PM-17mph from the E
12AM-23mph from the E
03AM-26mph from the E
06AM-29mph from the ESE
12PM-26mph from the S
03PM-21mph from the SSW
06PM-21mph from the WNW
12AM-22mph from the NW
03AM-21mph from the WNW
06AM-21mph from the WNW
12PM-24mph from the WNW
03PM-25mph from the WNW
06PM-28mph from the WNW
12AM-29mph from the NW
03AM-28mph from the NW
06AM-26mph from the NW
12PM-24mph from the NW
03PM-21mph from the NW
06PM-17mph from the NW
12AM-8mph from the WSW
03AM-9mph from the WSW
06AM-13mph from the SSW
12PM-24mph from the SW
03PM-24mph from the SW
06PM-21mph from the SW
12AM-16mph from the SW
03AM-14mph from the SW
06AM-11mph from the SSW
12PM-24mph from the SSW
03PM-22mph from the SSW
06PM-16mph from the SW
12AM-13mph from the WNW
03AM-13mph from the WNW
06AM-13mph from the WNW
12PM-14mph from the W
03PM-14mph from the W
06PM-14mph from the W

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