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Oiso Jetty Surf Stats

All swells

(any wind direction)
Oiso jetty.surf.statistics.maySe.animatedSe.label.animated

Good Surf

(light / offshore wind)

The rose diagram describes the variation of swells directed at Oiso Jetty through an average May and is based upon 2838 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 best grid node based on what we know about Oiso Jetty. In the case of Oiso Jetty, the best grid node is 39 km away (24 miles). The rose diagram illustrates the distribution of swell sizes and directions, while the graph at the bottom shows the same thing but 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 were forecast 57% of the time. Green and yellow illustrate increasing swell sizes and highest swells greater than >3m (>10ft) are shown in red. In either graph, the area of any colour is proportional to how frequently that size swell happens. The diagram suggests that the dominant swell direction, shown by the longest spokes, was SE, whereas the the dominant wind blows from the S. Because the wave model grid is away from the coast, sometimes a strong offshore wind blows largest waves away from Oiso Jetty and out to sea. We lump these in with the no surf category of the bar chart. To simplify things we don't show these in the rose plot. Because wind determines whether or not waves are clean enough to surf at Oiso Jetty, you can load a different image that shows only the swells that were predicted to coincide with glassy or offshore wind conditions. In a typical May, swells large enough to cause surfable waves at Oiso Jetty run for about 6% of the time.

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Also see Oiso Jetty wind stats

Compare Oiso Jetty with another surf break

Nearby location  blueNearest
Nearby location  blueNearest