Port Robinson Wind Stats

This image describes how often and how strongly the wind blows from different directions over a normal May. The biggest 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 3440 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Port Robinson, located 20 km away (12 miles). There are not enough 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 dominant wind at Port Robinson blows from the SE. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Port Robinson. On the other hand, dominant spokes represent 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 15% of the time (5 days each May) and blows offshore 48% of the time (15 days in an average May). Over an average May winds stronger than >40kph (25mph) are expected on 2 days at Port Robinson

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