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Vota Copa (Bull Bay)


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Copa (Bull Bay) Surf Stats

All swells

(any wind direction)
Copa.surf.statistics.februarySse.animatedSse.label.animated

Good Surf

(light / offshore wind)

This image illustrates the variation of swells directed at Copa (Bull Bay) through a typical February. It is based on 3120 NWW3 model predictions since 2007 (values every 3 hours). The wave model does not forecast wind or surf right at the coast so we have chosen the optimum grid node based on what we know about Copa (Bull Bay). In the case of Copa (Bull Bay), the best grid node is 53 km away (33 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 happened only 16% of the time. Green and yellow represent increasing swell sizes and red represents largest swells greater than >3m (>10ft). In each graph, the area of any colour is proportional to how commonly that size swell occurs. The diagram implies that the dominant swell direction, shown by the longest spokes, was ESE, whereas the the most common wind blows from the ENE. Because the wave model grid is out to sea, sometimes a strong offshore wind blows largest waves away from Copa (Bull Bay) and offshore. We group these with the no surf category of the bar chart. To avoid confusion we don't show these in the rose diagram. Because wind determines whether or not waves are surfable at Copa (Bull Bay), you can select a similar diagram that shows only the swells that were forecast to coincide with glassy or offshore wind conditions. Over an average February, swells large enough to cause good for surfing waves at Copa (Bull Bay) run for about 84% of the time.

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Also see Copa (Bull Bay) wind stats

Compare Copa (Bull Bay) with another surf break