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Marengo Surf Stats

All swells

(any wind direction)
Marengo.surf.statistics.decemberSsw.animatedSsw.label.animated

Good Surf

(light / offshore wind)

This image shows the variation of swells directed at Marengo over a normal December, based on 3448 NWW3 model predictions since 2006 (values every 3 hours). The wave model does not forecast wind or surf right at the shore so we have chosen the most applicable grid node based on what we know about Marengo. In this particular case the best grid node is 28 km away (17 miles). The rose diagram shows the distribution of swell sizes and directions, while the graph at the bottom shows the same thing without direction information. Five colours represent increasing wave sizes. Very small swells of less than 0.5m (1.5 feet) high are shown in blue. These occurred only 5% of the time. Green and yellow show increasing swell sizes and biggest swells greater than >3m (>10ft) are shown in red. In either graph, the area of any colour is proportional to how commonly that size swell occurs. The diagram implies that the dominant swell direction, shown by the largest spokes, was SW, whereas the the prevailing wind blows from the SSW. Because the wave model grid is offshore, sometimes a strong offshore wind blows largest waves away from Marengo and away from the coast. We group these with the no surf category of the bar chart. To simplify things we don't show these in the rose plot. Because wind determines whether or not waves are clean enough to surf at Marengo, you can view an alternative image that shows only the swells that were forecast to coincide with glassy or offshore wind conditions. During a typical December, swells large enough to cause surfable waves at Marengo run for about 93% of the time.

  • Marengo.surf.statistics.januarySsw.animated
  • Marengo.surf.statistics.februarySsw.animated
  • Marengo.surf.statistics.marchSsw.animated
  • Marengo.surf.statistics.aprilSsw.animated
  • Marengo.surf.statistics.maySsw.animated
  • Marengo.surf.statistics.juneSsw.animated
  • Marengo.surf.statistics.julySsw.animated
  • Marengo.surf.statistics.augustSsw.animated
  • Marengo.surf.statistics.septemberSsw.animated
  • Marengo.surf.statistics.octoberSsw.animated
  • Marengo.surf.statistics.novemberSsw.animated
  • Marengo.surf.statistics.decemberSsw.animated

Also see Marengo wind stats

Compare Marengo with another surf break