Aticama Wind Statistics, Março averages since 2006
This chart describes how frequently and how strongly the wind blows from different directions over a normal March. 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 the darkest shade of blue. It is based on 2220 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Aticama, located 31 km away (19 miles). There are not enough recording stations world wide to use actual wind data. Invevitably some coastal places have very localized wind effects that would not be predicted by NWW3.
According to the model, the dominant wind at Aticama blows from the SW. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Aticama. By contrast, dominant spokes show 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 March, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 44% of the time (14 days each March) and blows offshore 65% of the time (15 days in an average March). Over an average March winds exceeding >40kph (25mph) are not expected, but 0 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.