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Three Arch Bay Voti
Qualità su una buona giornata: 4.0
Coerenza del surf: 5.0
Livello di difficoltà: 3.5
Wind e kite surf: 1.0
Folle: 4.0

Overall: 3.1

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Surf Report Feed

Three Arch Bay Surf Stats

All swells

(any wind direction)
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Good Surf

(light / offshore wind)

The rose diagram describes the combination of swells directed at Three Arch Bay through a typical April. It is based on 3360 NWW3 model predictions since 2007 (values every 3 hours). The wave model does not forecast wind or surf right at the shore so we have chosen the optimum grid node based on what we know about Three Arch Bay. In the case of Three Arch Bay, the best grid node is 21 km away (13 miles). The rose diagram describes 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 happened only 2% of the time. Green and yellow show increasing swell sizes and red shows highest swells greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how often that size swell was forecast. The diagram indicates that the prevailing swell direction, shown by the longest spokes, was SSW, whereas the the dominant wind blows from the WSW. Because the wave model grid is away from the coast, sometimes a strong offshore wind blows largest waves away from Three Arch Bay 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 graph. Because wind determines whether or not waves are surfable at Three Arch Bay, you can select a similar diagram that shows only the swells that were expected to coincide with glassy or offshore wind conditions. Over an average April, swells large enough to cause good for surfing waves at Three Arch Bay run for about 98% of the time.

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  • Three arch bay.surf.statistics.marchSw.animated
  • Three arch bay.surf.statistics.aprilSw.animated
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Also see Three Arch Bay wind stats

Compare Three Arch Bay with another surf break

We hope you find the new 12-day forecasts and additional details useful.

Kudos to everyone who helped us debug this over the past 3 months.

Be sure to click on the Advanced Surf option to see extra details about the sea-state. Look out for crossing swells and short period local wind swells and chop that will often spoil a groundswell even if the wind is perfect. As yet there is no allowance for this in the swell rating. This is something we are working on.