Avoca Point Wind Statistics, Autumn averages since 2006
This picture shows how frequently and how strongly the wind blows from different directions through a typical 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 dark blue strongest. It is based on 6580 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Avoca Point, located 5 km away (3 miles). There are not enough 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 Avoca Point blows from the ESE. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Avoca Point. Converseley, dominant spokes show favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average southern hemisphere autumn, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 12% of the time (11 days each southern hemisphere autumn) and blows offshore 26% of the time (24 days in an average southern hemisphere autumn). During a typical southern hemisphere autumn wind stronger than >40kph (25mph) was forecast for only a single days at Avoca Point
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.