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Greenough River Mouth Surf Stats

All swells

(any wind direction)
Greenough river mouth.surf.statistics.maySw.animatedSw.label.animated

Good Surf

(light / offshore wind)

The graph shows the combination of swells directed at Greenough River Mouth through a typical May. It is based on 3238 NWW3 model predictions since 2007 (values every 3 hours). The wave model does not forecast wind and surf right at the coastline so we have chosen the optimum grid node based on what we know about Greenough River Mouth. In the case of Greenough River Mouth, the best grid node is 20 km away (12 miles). The rose diagram illustrates the distribution of swell sizes and swell direction, while the graph at the bottom shows the same thing but without direction information. Five colours show increasing wave sizes. The smallest swells, less than 0.5m (1.5 feet), high are coloured blue. These occurred only 0.2% of the time. Green and yellow show increasing swell sizes and red shows biggest swells greater than >3m (>10ft). In each graph, the area of any colour is proportional to how frequently that size swell happens. The diagram suggests that the prevailing swell direction, shown by the longest spokes, was SW, whereas the the prevailing wind blows from the SE. Because the wave model grid is away from the coast, sometimes a strong offshore wind blows largest waves away from Greenough River Mouth 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 graph. Because wind determines whether or not waves are good for surfing at Greenough River Mouth, you can view an alternative image that shows only the swells that were forecast to coincide with glassy or offshore wind conditions. Over an average May, swells large enough to cause clean enough to surf waves at Greenough River Mouth run for about 87% of the time.

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Also see Greenough River Mouth wind stats

Compare Greenough River Mouth with another surf break