Gullane Bay Wind Statistics, July averages since 2006
The graph describes how commonly and how strongly the wind blows from different directions over a normal July. The biggest 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 2479 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Gullane Bay, located 53 km away (33 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 dominant wind at Gullane Bay blows from the NE. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Gullane Bay. By contrast, dominant spokes represent favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. During a typical July, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 10% of the time (3 days each July) and blows offshore 23% of the time (0 days in an average July). Over an average July winds exceeding >40kph (25mph) are not expected, but 2 have winds on the range 30-40 (19-25) at Gullane 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.