Bolt Head Wind Stats

This chart describes how often and how strongly the wind blows from different directions through a typical July. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with dark blue strongest. It is based on 3720 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 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 prevailing wind at Bolt Head blows from the WSW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Bolt Head. 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. Over an average July, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 8% of the time (2 days each July) and blows offshore 42% of the time (3 days in an average July). During a typical July winds stronger than >40kph (25mph) are expected on 2 days at Bolt Head

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