Ribeira da Janela Wind Stats

The graph shows how commonly 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 the darkest shade of blue strongest. It is based on 3440 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Ribeira da Janela, located 22 km away (14 miles). There are insufficient recording stations world wide to use actual wind data. Without question some coastal places have very localized wind effects that would not be predicted by NWW3. According to the model, the most common wind at Ribeira da Janela blows from the NNW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Ribeira da Janela. By contrast, dominant spokes show 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 May, 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 May) and blows offshore 12% of the time (4 days in an average May). Over an average May winds exceeding >40kph (25mph) are not expected, but 6 have winds on the range 30-40 (19-25) at Ribeira da Janela

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