This image shows only the swells directed at Bouznika Plage that coincided with light winds or offshore conditions over a normal January. It is based on 1728 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 each graph, the area of any colour is proportional to how often that size swell happens.
The diagram indicates that the prevailing swell direction, shown by the longest spokes, was NW, whereas the the most common wind blows from the NNE. 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. Open water swells exceeding >3m (>10ft) only arise 4% of the time in a typical January, equivalent to just one day but 28% of the time we expect swell in the range 2-3m (6.5-10ft) 28%, equivalent to (9 days). Taking into account the proportion of these swells that coincided with predicted offshore winds, and given the fact that Bouznika Plage is quite sheltered from open water swells, we think that that clean surf can be found at Bouznika Plage about 32% of the time and that surf is messed up by onshore wind 23% of the time. This is means that we expect 17 days with waves in a typical January, 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.