Aisling's Beach Swell Statistics, June: Surf with Light or Offshore Winds
This image shows only the swells directed at Aisling's Beach that coincided with light winds or offshore conditions through a typical June. It is based on 2306 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours represent increasing wave sizes. Very small swells of less than 0.5m (1.5 feet) high are shown in blue. Green and yellow represent increasing swell sizes and red shows the biggest 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 biggest spokes, was SE, whereas the the prevailing wind blows from the W. 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 57% of the time, equivalent to 17 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal June but 9% of the time we expect swell in the range 2-3m (6.5-10ft) 9%, equivalent to (3 days). Taking into account the ratio of these swells that coincided with forecast offshore winds, and given the fact that Aisling's Beach is exposed to open water swells, we think that that clean surf can be found at Aisling's Beach about 57% of the time and that surf is spoilt by onshore wind 17% of the time. This is means that we expect 22 days with waves in a typical June, of which 17 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.