This picture describes how commonly and how strongly the wind blows from different directions over a normal southern hemisphere autumn. The largest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with deep blue strongest. It is based on 4842 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Ayampe, located 30 km away (19 miles). There are insufficient 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 most common wind at Ayampe blows from the WNW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Ayampe. On the other hand, 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 southern hemisphere autumn, the model suggests that winds are light enough for the sea to be glassy (light blue) about 1.6% of the time (1 days each southern hemisphere autumn) and blows offshore just 1.7% of the time (2 days in an average southern hemisphere autumn). Over an average southern hemisphere autumn winds exceeding >40kph (25mph) are not expected, but 0 have winds on the range 30-40 (19-25) at Ayampe
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.