Avalanche Wind Statistics, Janeiro averages since 2006
This chart illustrates how often and how strongly the wind blows from different directions over a normal January. The longest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with the strongest winds shown by the darkest shade of blue. It is based on 2372 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Avalanche, located 41 km away (25 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 Avalanche blows from the NW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Avalanche. By contrast, dominant spokes illustrate favoured directions, and the more dark blue, the stronger the wind. Spokes point in the direction the wind blows from. During a typical January, the model suggests that winds are light enough for the sea to be glassy (light blue) about 17% of the time (5 days each January) and blows offshore 48% of the time (15 days in an average January). Over an average January winds exceeding >40kph (25mph) are not expected, but 3 have winds on the range 30-40 (19-25) at Avalanche
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.