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I and Js Voti
Qualità su una buona giornata: 2.0
Coerenza del surf: 3.0
Livello di difficoltà: 3.0
Folle: 4.0

Overall: 3.0

Vedi tutti i 18 voti

basato su 1 vote. Voto


Surf Report Feed

I and Js Surf Stats

All swells

(any wind direction)
I and js.surf.statistics.aprilW.animatedW.label.animated

Good Surf

(light / offshore wind)

This chart illustrates the range of swells directed at I and Js over a normal April and is based upon 3360 NWW3 model predictions since 2007 (values every 3 hours). The wave model does not forecast wind and surf right at the coast so we have chosen the best grid node based on what we know about I and Js. In the case of I and Js, the best grid node is 35 km away (22 miles). The rose diagram shows the distribution of swell sizes and directions, 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 were forecast only 19% of the time. Green and yellow represent increasing swell sizes and red shows the largest swells, greater than >3m (>10ft). In each graph, the area of any colour is proportional to how frequently that size swell occurs. The diagram suggests that the dominant swell direction, shown by the longest spokes, was SW, whereas the the most common wind blows from the S. Because the wave model grid is out to sea, sometimes a strong offshore wind blows largest waves away from I and Js and offshore. We group these with the no surf category of the bar chart. To avoid confusion we don't show these in the rose plot. Because wind determines whether or not waves are good for surfing at I and Js, 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 April, swells large enough to cause clean enough to surf waves at I and Js run for about 81% of the time.

  • I and js.surf.statistics.januaryW.animated
  • I and js.surf.statistics.februaryW.animated
  • I and js.surf.statistics.marchW.animated
  • I and js.surf.statistics.aprilW.animated
  • I and js.surf.statistics.mayW.animated
  • I and js.surf.statistics.juneW.animated
  • I and js.surf.statistics.julyW.animated
  • I and js.surf.statistics.augustW.animated
  • I and js.surf.statistics.septemberW.animated
  • I and js.surf.statistics.octoberW.animated
  • I and js.surf.statistics.novemberW.animated
  • I and js.surf.statistics.decemberW.animated

Also see I and Js wind stats

Compare I and Js 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.