Manly Wind Stats

The figure illustrates how often and how strongly the wind blows from different directions through a typical July. The longest spokes point in the directions the wind most commonly blows from and the shade of blue implies the strength, with dark blue showing the strongest winds. It is based on 3472 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Manly, located 29 km away (18 miles). There are insufficient recording stations world wide to use actual wind data. Invevitably some coastal places have very localized wind effects that would not be predicted by NWW3. According to the model, the prevailing wind at Manly blows from the SE. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Manly. Converseley, dominant spokes represent favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average July, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 6% of the time (2 days each July) and blows offshore 49% of the time (7 days in an average July). During a typical July winds stronger than >40kph (25mph) are expected on 2 days at Manly

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