Bouznika Plage Swell Statistics, March: Surf with Light or Offshore Winds
The rose diagram shows only the swells directed at Bouznika Plage that coincided with light winds or offshore conditions through a typical March. It is based on 2220 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 represent increasing swell sizes and red shows the largest swells, greater than >3m (>10ft). In either graph, the area of any colour is proportional to how commonly that size swell happens.
The diagram implies that the most common swell direction, shown by the biggest spokes, was NW, whereas the the most common 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 19% of the time, equivalent to 6 days. Open sea swells exceeding >3m (>10ft) are unlikely to arise in a normal March but 18% of the time we expect swell in the range 2-3m (6.5-10ft) 18%, equivalent to (6 days). Taking into account the ratio of these swells that coincided with predicted offshore winds, and given the fact that Bouznika Plage is quite sheltered from open water swells, we calculate that clean surf can be found at Bouznika Plage about 19% of the time and that surf is spoilt by onshore wind 16% of the time. This is means that we expect 11 days with waves in a typical March, of which 6 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.