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La Perouse Bay/The Dumps Surf Stats

All swells

(any wind direction)
La perouse bay the dumps.surf.statistics.mayS.animatedS.label.animated

Good Surf

(light / offshore wind)

This picture describes the variation of swells directed at La Perouse Bay/The Dumps through an average May, based on 3440 NWW3 model predictions since 2007 (values every 3 hours). The wave model does not forecast wind or surf right at the shore so we have chosen the best grid node based on what we know about La Perouse Bay/The Dumps. In this particular case the best grid node is 13 km away (8 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 represent increasing wave sizes. Very small swells of less than 0.5m (1.5 feet) high are shown in blue. These occurred only 38% of the time. Green and yellow represent 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 largest spokes, was SSW, whereas the the dominant wind blows from the ENE. Because the wave model grid is out to sea, sometimes a strong offshore wind blows largest waves away from La Perouse Bay/The Dumps and offshore. We lump these in with the no surf category of the bar chart. To keep it simple we don't show these in the rose graph. Because wind determines whether or not waves are clean enough to surf at La Perouse Bay/The Dumps, you can select a similar diagram that shows only the swells that were expected to coincide with glassy or offshore wind conditions. In a typical May, swells large enough to cause surfable waves at La Perouse Bay/The Dumps run for about 10% of the time.

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Also see La Perouse Bay/The Dumps wind stats

Compare La Perouse Bay/The Dumps with another surf break