Aberaeron Swell Statistics, Fevereiro: Surf with Light or Offshore Winds
The rose diagram shows only the swells directed at Aberaeron that coincided with light winds or offshore conditions over a normal February and is based upon 2101 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 represents the biggest swells, greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how often that size swell occurs.
The diagram indicates that the most common 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 4% of the time, equivalent to 1 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal February. Taking into account the proportion of these swells that coincided with expected offshore winds, and given the fact that Aberaeron is slightly protected from open water swells, we calculate that clean surf can be found at Aberaeron about 4% of the time and that surf is blown out by onshore wind 30% of the time. This is means that we expect 10 days with waves in a typical February, of which 1 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.