Belle Ile - Les Donnants Wind Stats

This picture illustrates how commonly and how strongly the wind blows from different directions over a normal November. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with the darkest shade of blue showing the strongest winds. It is based on 3347 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Belle Ile - Les Donnants, located 41 km away (25 miles). There are insufficient 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 most common wind at Belle Ile - Les Donnants blows from the WSW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Belle Ile - Les Donnants. 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 November, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 1.3% of the time (0 days each November) and blows offshore just 9% of the time (2 days in an average November). Over an average November winds stronger than >40kph (25mph) are expected on 4 days at Belle Ile - Les Donnants

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