Avalon Pier Wind Statistics, Spring averages since 2006
The rose diagram describes how commonly and how strongly the wind blows from different directions over a normal northern hemisphere spring. The largest spokes point in the directions the wind most commonly blows from and the shade of blue implies the strength, with deep blue strongest. It is based on 6580 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Avalon Pier, located 17 km away (11 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 Avalon Pier blows from the NE. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Avalon Pier. On the other hand, dominant spokes represent 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 northern hemisphere spring, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 4% of the time (4 days each northern hemisphere spring) and blows offshore just 18% of the time (16 days in an average northern hemisphere spring). Over an average northern hemisphere spring winds stronger than >40kph (25mph) are expected on 6 days at Avalon Pier
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.