Anglet - La Piscine Swell Statistics, All Year: Surf with Light or Offshore Winds
This image shows only the swells directed at Anglet - La Piscine that coincided with light winds or offshore conditions through a typical year. It is based on 28042 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 illustrate increasing swell sizes and red illustrates the largest swells, greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how commonly that size swell was forecast.
The diagram implies that the prevailing swell direction, shown by the largest spokes, was WNW (which was the same as the most common wind direction). 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 32% of the time, equivalent to 117 days. Open water swells exceeding >3m (>10ft) only occur 0.3% of the time in a typical year, equivalent to just one day but 4% of the time we expect swell in the range 2-3m (6.5-10ft) 4%, equivalent to (15 days). Taking into account the fraction of these swells that coincided with forecast offshore winds, and given the fact that Anglet - La Piscine is exposed to open water swells, we think that that clean surf can be found at Anglet - La Piscine about 32% of the time and that surf is spoilt by onshore wind 59% of the time. This is means that we expect 332 days with waves in a typical year, of which 117 days should be clean enough to surf.
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.