Cottesloe Beach Wind Stats

The figure describes how commonly 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 deep 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 Cottesloe Beach, located 23 km away (14 miles). There are not enough 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 Cottesloe Beach blows from the WSW. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Cottesloe Beach. Converseley, dominant spokes represent 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 May, the model suggests that winds are light enough for the sea to be glassy (light blue) about 10% of the time (3 days each May) and blows offshore 48% of the time (12 days in an average May). Over an average May winds stronger than >40kph (25mph) are expected on 2 days at Cottesloe Beach

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