Barra do Douro Wind Stats

This chart describes how commonly and how strongly the wind blows from different directions through a typical November. The longest spokes point in the directions the wind most commonly blows from and the shade of blue implies the strength, with the strongest winds shown by the darkest shade of blue. It is based on 3347 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Barra do Douro, located 32 km away (20 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 dominant wind at Barra do Douro blows from the WNW. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Barra do Douro. 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 November, the model suggests that winds are light enough for the sea to be glassy (light blue) about 14% of the time (4 days each November) and blows offshore 32% of the time (9 days in an average November). During a typical November winds stronger than >40kph (25mph) are expected on 3 days at Barra do Douro

read more