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San Miguel - Baixa de Viola Surf Stats

All swells

(any wind direction)
Baixade viola.surf.statistics.augustNnw.animatedNnw.label.animated

Good Surf

(light / offshore wind)

The graph describes the range of swells directed at San Miguel - Baixa de Viola over a normal August and is based upon 3574 NWW3 model predictions since 2006 (values every 3 hours). The wave model does not forecast surf and wind right at the coastline so we have chosen the most applicable grid node based on what we know about San Miguel - Baixa de Viola. In the case of San Miguel - Baixa de Viola, the best grid node is 21 km away (13 miles). The rose diagram illustrates the distribution of swell directions and swell sizes, 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 were forecast only 35% of the time. Green and yellow represent increasing swell sizes and red illustrates highest swells greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how often that size swell happens. The diagram indicates that the prevailing swell direction, shown by the longest spokes, was NNW, whereas the the dominant wind blows from the N. Because the wave model grid is out to sea, sometimes a strong offshore wind blows largest waves away from San Miguel - Baixa de Viola 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 plot. Because wind determines whether or not waves are clean enough to surf at San Miguel - Baixa de Viola, you can select a similar diagram that shows only the swells that were expected to coincide with glassy or offshore wind conditions. During a typical August, swells large enough to cause surfable waves at San Miguel - Baixa de Viola run for about 65% of the time.

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Also see San Miguel - Baixa de Viola wind stats

Compare San Miguel - Baixa de Viola with another surf break