Swell Matrix

Instructions

• Circle size corresponds to wave period length. For a given swell height, a longer-period wave will break into larger surf than a short period wave.
• Hover or tap a circle for detailed swell train information
• Circle color indicates the direction the swell is coming from
• The line indicates estimated surf height. It assumes swell hitting the shore at a 90 degree angle at a well exposed-spot.
• On small screens, swipe or scroll horizontally to see all the days in the forecast
• Surf Height Calculator:

  Swell Height:

  Period:

  Surf Height: