Marin County
Wave Heights

Near Shore Wave Height Forecast
*Marin County surf and weather forecast based on Stinson Beach

This Afternoon
This Afternoon<br>A chance of showers and thunderstorms, mainly before 4pm, then a slight chance of rain and thunderstorms after 5pm.  Partly sunny, with a high near 54. West southwest wind around 14 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
MondayMonday<br>Mostly sunny, with a high near 57. West wind 13 to 16 mph, with gusts as high as 21 mph.
Tuesday<br>A 50 percent chance of rain.  Partly sunny, with a high near 56. Breezy, with a west northwest wind 17 to 22 mph, with gusts as high as 28 mph.  New precipitation amounts of less than a tenth of an inch possible.
Wednesday<br>Sunny, with a high near 60.
Thursday<br>Sunny, with a high near 60.
Friday<br>Mostly sunny, with a high near 60.
Saturday<br>Partly sunny, with a high near 58.
01AM-14mph from the W
04AM-12mph from the W
10AM-19mph from the W
01PM-15mph from the W
04PM-14mph from the W
10PM-8mph from the N
01AM-9mph from the NW
04AM-13mph from the NW
10AM-19mph from the WNW
01PM-19mph from the W
04PM-17mph from the W
10PM-15mph from the SSW
01AM-20mph from the W
04AM-19mph from the W
10AM-21mph from the WNW
01PM-23mph from the WNW
04PM-26mph from the WNW
10PM-16mph from the NW
01AM-13mph from the NNW
04AM-10mph from the NNW
10AM-9mph from the NW
01PM-10mph from the NW
04PM-12mph from the NW
10PM-12mph from the NW
01AM-10mph from the NW
04AM-8mph from the NW
10AM-5mph from the NW
01PM-6mph from the NW
04PM-9mph from the W
10PM-8mph from the W
01AM-5mph from the W
04AM-3mph from the S
10AM-2mph from the S
01PM-4mph from the W
04PM-6mph from the W
10PM-6mph from the W
01AM-5mph from the W
04AM-5mph from the W
10AM-6mph from the W
01PM-8mph from the W
04PM-9mph from the W
10PM-10mph 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.

Marin County 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