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Isla San Jose Surf Stats

All swells

(any wind direction)
Isla san jose.surf.statistics.februaryNnw.animatedNnw.label.animated

Good Surf

(light / offshore wind)

This picture shows the range of swells directed at Isla San Jose over a normal February and is based upon 3120 NWW3 model predictions since 2007 (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 Isla San Jose. In this particular case the best grid node is 21 km away (13 miles). The rose diagram describes the distribution of swell sizes and directions, while the graph at the bottom shows the same thing without direction information. Five colours illustrate increasing wave sizes. Blue shows the smallest swells, less that 0.5m (1.5 feet) high. These occurred only 34% of the time. Green and yellow represent increasing swell sizes and red shows the biggest swells, greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how often that size swell occurs. The diagram indicates that the most common swell direction, shown by the longest spokes, was N, whereas the the prevailing wind blows from the ESE. Because the wave model grid is offshore, sometimes a strong offshore wind blows largest waves away from Isla San Jose and away from the coast. We combine these with the no surf category of the bar chart. To avoid confusion we don't show these in the rose graph. Because wind determines whether or not waves are surfable at Isla San Jose, you can load a different image that shows only the swells that were forecast to coincide with glassy or offshore wind conditions. During a typical February, swells large enough to cause good for surfing waves at Isla San Jose run for about 66% of the time.

  • Isla san jose.surf.statistics.januaryNnw.animated
  • Isla san jose.surf.statistics.februaryNnw.animated
  • Isla san jose.surf.statistics.marchNnw.animated
  • Isla san jose.surf.statistics.aprilNnw.animated
  • Isla san jose.surf.statistics.mayNnw.animated
  • Isla san jose.surf.statistics.juneNnw.animated
  • Isla san jose.surf.statistics.julyNnw.animated
  • Isla san jose.surf.statistics.augustNnw.animated
  • Isla san jose.surf.statistics.septemberNnw.animated
  • Isla san jose.surf.statistics.octoberNnw.animated
  • Isla san jose.surf.statistics.novemberNnw.animated
  • Isla san jose.surf.statistics.decemberNnw.animated

Also see Isla San Jose wind stats

Compare Isla San Jose with another surf break