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Foz do Arelho Surf Stats

All swells

(any wind direction)
Fozdo arelho.surf.statistics.augustW.animatedW.label.animated

Good Surf

(light / offshore wind)

This chart describes the combination of swells directed at Foz do Arelho through a typical August. It is based on 3224 NWW3 model predictions since 2006 (values every 3 hours). The wave model does not forecast wind and surf right at the coast so we have chosen the most applicable grid node based on what we know about Foz do Arelho. In the case of Foz do Arelho, the best grid node is 24 km away (15 miles). The rose diagram describes the distribution of swell sizes and swell direction, 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 39% of the time. Green and yellow show increasing swell sizes and highest swells greater than >3m (>10ft) are shown in red. In each graph, the area of any colour is proportional to how frequently that size swell was forecast. The diagram suggests that the most common swell direction, shown by the longest spokes, was NW, whereas the the dominant wind blows from the NNW. Because the wave model grid is out to sea, sometimes a strong offshore wind blows largest waves away from Foz do Arelho and offshore. We group these with the no surf category of the bar chart. To simplify things we don't show these in the rose graph. Because wind determines whether or not waves are good for surfing at Foz do Arelho, you can select a similar diagram that shows only the swells that were predicted to coincide with glassy or offshore wind conditions. Over an average August, swells large enough to cause clean enough to surf waves at Foz do Arelho run for about 61% of the time.

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  • Fozdo arelho.surf.statistics.marchW.animated
  • Fozdo arelho.surf.statistics.aprilW.animated
  • Fozdo arelho.surf.statistics.mayW.animated
  • Fozdo arelho.surf.statistics.juneW.animated
  • Fozdo arelho.surf.statistics.julyW.animated
  • Fozdo arelho.surf.statistics.augustW.animated
  • Fozdo arelho.surf.statistics.septemberW.animated
  • Fozdo arelho.surf.statistics.octoberW.animated
  • Fozdo arelho.surf.statistics.novemberW.animated
  • Fozdo arelho.surf.statistics.decemberW.animated

Also see Foz do Arelho wind stats

Compare Foz do Arelho with another surf break