This image shows only the swells directed at Kakapo that coincided with light winds or offshore conditions over a normal June. It is based on 1594 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 show increasing swell sizes and red shows the biggest swells, greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how frequently that size swell happens.
The diagram suggests that the dominant swell direction, shown by the biggest spokes, was SW (which was the same as the prevailing 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 41% of the time, equivalent to 12 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 predicted offshore winds, and given the fact that Kakapo is slightly protected from open water swells, we estimate that clean surf can be found at Kakapo about 41% of the time and that surf is blown out by onshore wind 53% of the time. This is means that we expect 28 days with waves in a typical June, of which 12 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.