Aberavon Wind Statistics, April averages since 2006
This chart shows how often and how strongly the wind blows from different directions over a normal April. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue implies the strength, with the strongest winds shown by the darkest shade of blue. It is based on 2159 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Aberavon, located 16 km away (10 miles). There are insufficient recording stations world wide to use actual wind data. Without question some coastal places have very localized wind effects that would not be predicted by NWW3.
According to the model, the most common wind at Aberavon blows from the WSW. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Aberavon. Converseley, dominant spokes illustrate favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. During a typical April, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 14% of the time (4 days each April) and blows offshore 34% of the time (6 days in an average April). Over an average April winds exceeding >40kph (25mph) are not expected, but 3 have winds on the range 30-40 (19-25) at Aberavon
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.