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Abereiddy ratings
Consistency of Surf: 3.0
Difficulty Level: 1.0
Crowds: 4.0

Overall: 3.2

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Surf Report Feed

Abereiddy Swell Statistics, December: Surf with Light or Offshore Winds

This image shows only the swells directed at Abereiddy that coincided with light winds or offshore conditions through a typical December. It is based on 2457 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 represents biggest swells greater than >3m (>10ft). In either 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 largest 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 12% of the time, equivalent to 4 days. Open water swells exceeding >3m (>10ft) only occur 1.8% of the time in a typical December, equivalent to just one day but 5% of the time we expect swell in the range 2-3m (6.5-10ft) 5%, equivalent to (2 days). Taking into account the ratio of these swells that coincided with predicted offshore winds, and given the fact that Abereiddy is slightly protected from open water swells, we calculate that clean surf can be found at Abereiddy about 12% of the time and that surf is blown out by onshore wind 51% of the time. This is means that we expect 19 days with waves in a typical December, of which 4 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.