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Yasuda Rivermouth Surf Stats

All swells

(any wind direction)
Yasuda rivermouth.surf.statistics.mayS.animatedS.label.animated

Good Surf

(light / offshore wind)

The figure describes the combination of swells directed at Yasuda Rivermouth through a typical May. It is based on 3440 NWW3 model predictions since 2007 (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 Yasuda Rivermouth. In this particular case the best grid node is 48 km away (30 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 represent increasing wave sizes. Very small swells of less than 0.5m (1.5 feet) high are shown in blue. These occurred only 57% of the time. Green and yellow illustrate increasing swell sizes and red represents the highest swells, greater than >3m (>10ft). In each graph, the area of any colour is proportional to how often that size swell happens. The diagram indicates that the dominant swell direction, shown by the biggest spokes, was S (which was the same as the dominant wind direction). Because the wave model grid is out to sea, sometimes a strong offshore wind blows largest waves away from Yasuda Rivermouth 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 Yasuda Rivermouth, you can view an alternative image that shows only the swells that were predicted to coincide with glassy or offshore wind conditions. Over an average May, swells large enough to cause good for surfing waves at Yasuda Rivermouth run for about 43% of the time.

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Also see Yasuda Rivermouth wind stats

Compare Yasuda Rivermouth with another surf break