Statistiques de Vent de Aticama, moyennes sur Toute l'Année depuis 2006
This image describes how often and how strongly the wind blows from different directions over a normal year. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with the darkest shade of blue showing the strongest winds. It is based on 28044 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Aticama, located 31 km away (19 miles). There are too few recording stations world wide to use actual wind data. No doubt some coastal places have very localized wind effects that would not be predicted by NWW3.
According to the model, the prevailing wind at Aticama blows from the SW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Aticama. Converseley, dominant spokes show favoured directions, and the more dark blue, the stronger the wind. Spokes point in the direction the wind blows from. During a typical year, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 48% of the time (175 days each year) and blows offshore 64% of the time (172 days in an average year). Over an average year winds exceeding >40kph (25mph) are not expected, but 1 have winds on the range 30-40 (19-25) at Aticama
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.