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Ostional Surf Stats

All swells

(any wind direction)
Ostional.surf.statistics.mayWnw.animatedWnw.label.animated

Good Surf

(light / offshore wind)

This image describes the combination of swells directed at Ostional through an average May and is based upon 2838 NWW3 model predictions since 2007 (values every 3 hours). The wave model does not forecast surf and wind right at the coast so we have chosen the most applicable grid node based on what we know about Ostional, and at Ostional the best grid node is 28 km away (17 miles). The rose diagram shows the distribution of swell directions and swell sizes, while the graph at the bottom shows the same thing but lacks 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 100% of the time. Green and yellow represent increasing swell sizes and red shows the highest swells, greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how commonly that size swell occurs. The diagram implies that the prevailing swell direction, shown by the largest spokes, was WSW, whereas the the dominant wind blows from the SSW. Because the wave model grid is away from the coast, sometimes a strong offshore wind blows largest waves away from Ostional and out to sea. We lump these in with the no surf category of the bar chart. To keep it simple we don't show these in the rose plot. Because wind determines whether or not waves are surfable at Ostional, you can load a different image that shows only the swells that were expected to coincide with glassy or offshore wind conditions. In a typical May, swells large enough to cause good for surfing waves at Ostional run for about 0% of the time.

  • Ostional.surf.statistics.januaryWnw.animated
  • Ostional.surf.statistics.februaryWnw.animated
  • Ostional.surf.statistics.marchWnw.animated
  • Ostional.surf.statistics.aprilWnw.animated
  • Ostional.surf.statistics.mayWnw.animated
  • Ostional.surf.statistics.juneWnw.animated
  • Ostional.surf.statistics.julyWnw.animated
  • Ostional.surf.statistics.augustWnw.animated
  • Ostional.surf.statistics.septemberWnw.animated
  • Ostional.surf.statistics.octoberWnw.animated
  • Ostional.surf.statistics.novemberWnw.animated
  • Ostional.surf.statistics.decemberWnw.animated

Also see Ostional wind stats

Compare Ostional with another surf break