This image shows only the swells directed at Ogmore-by-Sea that coincided with light winds or offshore conditions through a typical June and is based upon 1593 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 red shows largest swells greater than >3m (>10ft). In either graph, the area of any colour is proportional to how often that size swell occurs.
The diagram indicates that the dominant swell direction, shown by the largest spokes, was WSW (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 0% of the time, equivalent to 0 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal June. Taking into account the fraction of these swells that coincided with predicted offshore winds, and given the fact that Ogmore-by-Sea is quite sheltered from open water swells, we calculate that clean surf can be found at Ogmore-by-Sea about 0% of the time and that surf is blown out by onshore wind 3% of the time. This is means that we expect 1 days with waves in a typical June, of which 0 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.