Boca da Barra Wind Stats

The rose diagram shows how often and how strongly the wind blows from different directions through a typical April. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with the strongest winds shown by dark blue. It is based on 1200 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Boca da Barra, located 25 km away (16 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 Boca da Barra blows from the ESE. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Boca da Barra. 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 April, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 35% of the time (10 days each April) and blows offshore 39% of the time (12 days in an average April). In a typical April winds exceeding >40kph (25mph) are not expected, but 0 have winds on the range 30-40 (19-25) at Boca da Barra

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