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Seals Surf Stats

All swells

(any wind direction)
Seals.surf.statistics.decemberSw.animatedSw.label.animated

Good Surf

(light / offshore wind)

This image shows the combination of swells directed at Seals through an average December, based on 3448 NWW3 model predictions since 2006 (values every 3 hours). The wave model does not forecast wind and surf right at the shore so we have chosen the optimum grid node based on what we know about Seals. In the case of Seals, the best grid node is 49 km away (30 miles). The rose diagram shows the distribution of swell sizes and swell direction, while the graph at the bottom shows the same thing but lacks direction information. Five colours show increasing wave sizes. The smallest swells, less than 0.5m (1.5 feet), high are coloured blue. These occurred only 85% of the time. Green and yellow represent increasing swell sizes and red shows biggest swells greater than >3m (>10ft). In either graph, the area of any colour is proportional to how commonly that size swell occurs. The diagram implies that the most common swell direction, shown by the largest spokes, was WSW, whereas the the prevailing wind blows from the NW. Because the wave model grid is offshore, sometimes a strong offshore wind blows largest waves away from Seals and away from the coast. We combine these with the no surf category of the bar chart. To keep it simple we don't show these in the rose diagram. Because wind determines whether or not waves are good for surfing at Seals, you can load a different image that shows only the swells that were forecast to coincide with glassy or offshore wind conditions. In a typical December, swells large enough to cause clean enough to surf waves at Seals run for about 15% of the time.

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  • Seals.surf.statistics.marchSw.animated
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  • Seals.surf.statistics.juneSw.animated
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  • Seals.surf.statistics.augustSw.animated
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  • Seals.surf.statistics.octoberSw.animated
  • Seals.surf.statistics.novemberSw.animated
  • Seals.surf.statistics.decemberSw.animated

Also see Seals wind stats

Compare Seals with another surf break