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Santa Maria - Anjos Surf Stats

All swells

(any wind direction)
Anjos.surf.statistics.decemberNw.animatedNw.label.animated

Good Surf

(light / offshore wind)

The figure describes the variation of swells directed at Santa Maria - Anjos through a typical December, based on 3448 NWW3 model predictions since 2006 (values every 3 hours). The wave model does not forecast surf and wind right at the shore so we have chosen the most applicable grid node based on what we know about Santa Maria - Anjos. In this particular case the best grid node is 14 km away (9 miles). The rose diagram describes the distribution of swell directions and swell sizes, 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 happened only 25% of the time. Green and yellow illustrate increasing swell sizes and red represents highest swells greater than >3m (>10ft). In either graph, the area of any colour is proportional to how frequently that size swell occurs. The diagram suggests that the dominant swell direction, shown by the longest spokes, was NW, whereas the the dominant wind blows from the SW. Because the wave model grid is away from the coast, sometimes a strong offshore wind blows largest waves away from Santa Maria - Anjos and out to sea. We group these with the no surf category of the bar chart. To avoid confusion we don't show these in the rose plot. Because wind determines whether or not waves are surfable at Santa Maria - Anjos, you can select a similar diagram that shows only the swells that were expected to coincide with glassy or offshore wind conditions. Over an average December, swells large enough to cause good for surfing waves at Santa Maria - Anjos run for about 75% of the time.

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Also see Santa Maria - Anjos wind stats

Compare Santa Maria - Anjos with another surf break