Anglet - Les Cavaliers Swell Statistics, Summer: Surf with Light or Offshore Winds
The rose diagram shows only the swells directed at Anglet - Les Cavaliers that coincided with light winds or offshore conditions through a typical northern hemisphere summer and is based upon 7265 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours show increasing wave sizes. The smallest swells, less than 0.5m (1.5 feet), high are coloured blue. Green and yellow show increasing swell sizes and red represents the largest swells, greater than >3m (>10ft). In each graph, the area of any colour is proportional to how commonly that size swell was forecast.
The diagram implies that the most common swell direction, shown by the largest spokes, was WNW, whereas the the most common wind blows from the NNW. The chart at the bottom shows the same thing but without direction information. For example, swells larger than 1.5 feet (0.5m) coincided with good wind conditions 36% of the time, equivalent to 33 days. Open sea swells exceeding >3m (>10ft) are unlikely to occur in a normal northern hemisphere summer but 6% of the time you can expect swell in the range 1.3-2m (4-6.5ft) 6%, equivalent to (5 days). Taking into account the ratio of these swells that coincided with predicted offshore winds, and given the fact that Anglet - Les Cavaliers is exposed to open water swells, we think that that clean surf can be found at Anglet - Les Cavaliers about 36% of the time and that surf is spoilt by onshore wind 55% of the time. This is means that we expect 83 days with waves in a typical northern hemisphere summer, of which 33 days should be surfable.
IMPORTANT: Beta version feature! Swell heights are open water values from NWW3. There is no attempt to model near-shore effects. Coastal wave heights will generally be less, especially if the break does not have unobstructed exposure to the open ocean.