All Day Bay Wind Statistics, Winter averages since 2006
The graph shows how often and how strongly the wind blows from different directions over a normal southern hemisphere winter. The largest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with the strongest winds shown by the darkest shade of blue. It is based on 7266 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to All Day Bay, located 34 km away (21 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 most common wind at All Day Bay blows from the SSE. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at All Day Bay. 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 southern hemisphere winter, the model suggests that winds are light enough for the sea to be glassy (light blue) about 10% of the time (9 days each southern hemisphere winter) and blows offshore 43% of the time (38 days in an average southern hemisphere winter). Over an average southern hemisphere winter winds stronger than >40kph (25mph) are expected on 7 days at All Day Bay
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.