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Goat Island/Mokuauia Surf Stats

All swells

(any wind direction)
Goat island mokuauia.surf.statistics.mayNe.animatedNe.label.animated

Good Surf

(light / offshore wind)

This image describes the variation of swells directed at Goat Island/Mokuauia through a typical May and is based upon 3192 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 most applicable grid node based on what we know about Goat Island/Mokuauia, and at Goat Island/Mokuauia the best grid node is 38 km away (24 miles). The rose diagram shows the distribution of swell directions and swell sizes, 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 only 33% of the time. Green and yellow show increasing swell sizes and red represents highest swells greater than >3m (>10ft). In either graph, the area of any colour is proportional to how commonly that size swell was forecast. The diagram implies that the most common swell direction, shown by the longest spokes, was NE, whereas the the dominant wind blows from the E. Because the wave model grid is out to sea, sometimes a strong offshore wind blows largest waves away from Goat Island/Mokuauia and offshore. We lump these in with the no surf category of the bar chart. To simplify things we don't show these in the rose graph. Because wind determines whether or not waves are clean enough to surf at Goat Island/Mokuauia, you can select a similar diagram 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 surfable waves at Goat Island/Mokuauia run for about 67% of the time.

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Also see Goat Island/Mokuauia wind stats

Compare Goat Island/Mokuauia with another surf break