uk es it fr pt nl
Birsay Bay Notations
Qualité quand ça marche: 4.0
Consistance des Vagues: 3.0
Foule a l'Eau: 4.0

Général: 4.2

Voir toutes les 18 notations

Basé sur 1 vote. Voter


Surf Report Feed

Birsay Bay Surf Stats

All swells

(any wind direction)
Birsay bay.surf.statistics.octoberWnw.animatedWnw.label.animated

Good Surf

(light / offshore wind)

This image shows the combination of swells directed at Birsay Bay through a typical October. It is based on 2976 NWW3 model predictions since 2006 (values every 3 hours). The wave model does not forecast wind and surf right at the shore so we have chosen the optimum grid node based on what we know about Birsay Bay, and at Birsay Bay the best grid node is 17 km away (11 miles). The rose diagram describes the distribution of swell sizes and swell direction, 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 occurred only 23% of the time. Green and yellow illustrate increasing swell sizes and red represents the biggest swells, greater than >3m (>10ft). In each graph, the area of any colour is proportional to how often that size swell occurs. The diagram indicates that the dominant swell direction, shown by the largest spokes, was WNW, whereas the the prevailing wind blows from the SSW. Because the wave model grid is offshore, sometimes a strong offshore wind blows largest waves away from Birsay Bay and away from the coast. 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 good for surfing at Birsay Bay, you can load a different image that shows only the swells that were forecast to coincide with glassy or offshore wind conditions. Over an average October, swells large enough to cause clean enough to surf waves at Birsay Bay run for about 77% of the time.

  • Birsay bay.surf.statistics.januaryWnw.animated
  • Birsay bay.surf.statistics.februaryWnw.animated
  • Birsay bay.surf.statistics.marchWnw.animated
  • Birsay bay.surf.statistics.aprilWnw.animated
  • Birsay bay.surf.statistics.mayWnw.animated
  • Birsay bay.surf.statistics.juneWnw.animated
  • Birsay bay.surf.statistics.julyWnw.animated
  • Birsay bay.surf.statistics.augustWnw.animated
  • Birsay bay.surf.statistics.septemberWnw.animated
  • Birsay bay.surf.statistics.octoberWnw.animated
  • Birsay bay.surf.statistics.novemberWnw.animated
  • Birsay bay.surf.statistics.decemberWnw.animated

Also see Birsay Bay wind stats

Compare Birsay Bay with another surf break