Ile d'Oleron - Chassiron Wind Stats

The figure describes how frequently and how strongly the wind blows from different directions over a normal May. The largest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with dark blue showing the strongest winds. It is based on 3406 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Ile d'Oleron - Chassiron, located 8 km away (5 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 prevailing wind at Ile d'Oleron - Chassiron blows from the W. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Ile d'Oleron - Chassiron. On the other hand, dominant spokes illustrate favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. During a typical May, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 8% of the time (2 days each May) and blows offshore 20% of the time (6 days in an average May). Over an average May wind stronger than >40kph (25mph) was forecast for only a single days at Ile d'Oleron - Chassiron

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