Bolt Head Wind Stats

The graph illustrates how often and how strongly the wind blows from different directions over a normal August. The biggest 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 3574 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Bolt Head, located 28 km away (17 miles). There are too few 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 Bolt Head blows from the WSW. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Bolt Head. On the other hand, 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 August, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 7% of the time (2 days each August) and blows offshore 44% of the time (3 days in an average August). Over an average August winds stronger than >40kph (25mph) are expected on 2 days at Bolt Head

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