Anse de Lesconil Swell Statistics, March: Surf with Light or Offshore Winds
This image shows only the swells directed at Anse de Lesconil that coincided with light winds or offshore conditions through a typical March and is based upon 2220 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours illustrate increasing wave sizes. Blue shows the smallest swells, less that 0.5m (1.5 feet) high. Green and yellow illustrate increasing swell sizes and highest swells greater than >3m (>10ft) are shown in red. In either graph, the area of any colour is proportional to how often that size swell was forecast.
The diagram indicates that the dominant swell direction, shown by the biggest spokes, was W, whereas the the dominant wind blows from the N. 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 10 days. Expect open water swells to exceed >3m (>10ft) 10% of the time (3 days). Taking into account the ratio of these swells that coincided with forecast offshore winds, and given the fact that Anse de Lesconil is slightly protected from open water swells, we calculate that clean surf can be found at Anse de Lesconil about 32% of the time and that surf is blown out by onshore wind 42% of the time. This is means that we expect 23 days with waves in a typical March, of which 10 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.