Barrinha Wind Statistics, June averages since 2006
The graph describes how often and how strongly the wind blows from different directions through a typical June. 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 deep blue. It is based on 2306 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Barrinha, located 16 km away (10 miles). There are too few recording stations world wide to use actual wind data. Invevitably some coastal places have very localized wind effects that would not be predicted by NWW3.
According to the model, the dominant wind at Barrinha blows from the SSE. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Barrinha. 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. Over an average June, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 11% of the time (3 days each June) and blows offshore 33% of the time (7 days in an average June). In a typical June wind stronger than >40kph (25mph) was predicted for only a single days at Barrinha
IMPORTANT: Beta version feature! Swell heights are open water values from NWW3. There is no attempt to model near-shore effects. Coastal wave heights will generally be less, especially if the break does not have unobstructed exposure to the open ocean.