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Tahunanui bar Surf Stats

All swells

(any wind direction)
Tahunanui bar.surf.statistics.mayNnw.animatedNnw.label.animated

Good Surf

(light / offshore wind)

The figure shows the variation of swells directed at Tahunanui bar through an average May, based on 3181 NWW3 model predictions since 2008 (values every 3 hours). The wave model does not forecast surf and wind right at the shore so we have chosen the optimum grid node based on what we know about Tahunanui bar, and at Tahunanui bar the best grid node is 36 km away (22 miles). The rose diagram describes the distribution of swell sizes and swell direction, 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 happened 55% of the time. Green and yellow show increasing swell sizes and red represents biggest swells greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how frequently that size swell was forecast. The diagram suggests that the prevailing swell direction, shown by the longest spokes, was NNW, whereas the the prevailing 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 Tahunanui bar and out to sea. 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 clean enough to surf at Tahunanui bar, you can view an alternative image that shows only the swells that were expected to coincide with glassy or offshore wind conditions. In a typical May, swells large enough to cause surfable waves at Tahunanui bar run for about 20% of the time.

  • Tahunanui bar.surf.statistics.januaryNnw.animated
  • Tahunanui bar.surf.statistics.februaryNnw.animated
  • Tahunanui bar.surf.statistics.marchNnw.animated
  • Tahunanui bar.surf.statistics.aprilNnw.animated
  • Tahunanui bar.surf.statistics.mayNnw.animated
  • Tahunanui bar.surf.statistics.juneNnw.animated
  • Tahunanui bar.surf.statistics.julyNnw.animated
  • Tahunanui bar.surf.statistics.augustNnw.animated
  • Tahunanui bar.surf.statistics.septemberNnw.animated
  • Tahunanui bar.surf.statistics.octoberNnw.animated
  • Tahunanui bar.surf.statistics.novemberNnw.animated
  • Tahunanui bar.surf.statistics.decemberNnw.animated

Also see Tahunanui bar wind stats

Compare Tahunanui bar with another surf break