Statistiques de Vent de Aberdaron, moyennes sur Mai depuis 2006
The figure describes how frequently and how strongly the wind blows from different directions over a normal May. The longest 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 dark blue. It is based on 2197 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Aberdaron, located 36 km away (22 miles). There are too few 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 dominant wind at Aberdaron blows from the WSW. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Aberdaron. On the other hand, dominant spokes represent favoured directions, and the more the darkest shade of blue, the stronger the wind. Spokes point in the direction the wind blows from. During a typical May, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 8% of the time (2 days each May) and blows offshore 17% of the time (0 days in an average May). Over an average May wind stronger than >40kph (25mph) was expected for only a single days at Aberdaron
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.