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Otago Peninsula - Allans Beach Surf Stats

All swells

(any wind direction)
Allans beach.surf.statistics.januaryS.animatedS.label.animated

Good Surf

(light / offshore wind)

The graph shows the combination of swells directed at Otago Peninsula - Allans Beach over a normal January and is based upon 3364 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 Otago Peninsula - Allans Beach. In this particular case the best grid node is 21 km away (13 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 illustrate increasing wave sizes. Blue shows the smallest swells, less that 0.5m (1.5 feet) high. These happened only 37% of the time. Green and yellow represent increasing swell sizes and red shows the biggest swells, greater than >3m (>10ft). In either graph, the area of any colour is proportional to how often that size swell was forecast. The diagram indicates that the dominant swell direction, shown by the biggest spokes, was S, whereas the the prevailing wind blows from the NW. Because the wave model grid is away from the coast, sometimes a strong offshore wind blows largest waves away from Otago Peninsula - Allans Beach and out to sea. We combine 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 good for surfing at Otago Peninsula - Allans Beach, you can load a different image that shows only the swells that were expected to coincide with glassy or offshore wind conditions. During a typical January, swells large enough to cause clean enough to surf waves at Otago Peninsula - Allans Beach run for about 63% of the time.

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Also see Otago Peninsula - Allans Beach wind stats

Compare Otago Peninsula - Allans Beach with another surf break