uk es it fr pt nl
Outside Shoals ratings
Quality on a good day: 4.0
Consistency of Surf: 2.0
Crowds: 4.0

Overall: 3.0

See all 18 ratings

Based on 1 vote. Vote


Surf Report Feed

Outside Shoals Swell Statistics, August: Surf with Light or Offshore Winds

The rose diagram shows only the swells directed at Outside Shoals that coincided with light winds or offshore conditions through a typical August. It is based on 2976 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 represent increasing swell sizes and red illustrates largest swells greater than >3m (>10ft). In each graph, the area of any colour is proportional to how often that size swell was forecast.

The diagram indicates that the prevailing swell direction, shown by the longest spokes, was SE, whereas the the most common wind blows from the SSW. 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 34% of the time, equivalent to 11 days. Open sea swells exceeding >3m (>10ft) are unlikely to occur in a normal August. Taking into account the fraction of these swells that coincided with predicted offshore winds, and given the fact that Outside Shoals is exposed to open water swells, we estimate that clean surf can be found at Outside Shoals about 34% of the time and that surf is messed up by onshore wind 47% of the time. This is means that we expect 25 days with waves in a typical August, of which 11 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.