Aticama Wind Statistics, Gennaio averages since 2006
The rose diagram describes how often and how strongly the wind blows from different directions through a typical January. The largest spokes point in the directions the wind most commonly blows from and the shade of blue implies the strength, with the darkest shade of blue showing the strongest winds. It is based on 2372 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 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 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 illustrate favoured directions, and the more dark blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average January, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 40% of the time (12 days each January) and blows offshore 69% of the time (8 days in an average January). In a typical January 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.