Aberystwyth harbour trap Wind Statistics, July averages since 2006
This chart illustrates how frequently and how strongly the wind blows from different directions through a typical July. 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 2479 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Aberystwyth harbour trap, located 29 km away (18 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 Aberystwyth harbour trap blows from the WSW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Aberystwyth harbour trap. By contrast, dominant spokes illustrate 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 July, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 10% of the time (3 days each July) and blows offshore 20% of the time (0 days in an average July). During a typical July winds exceeding >40kph (25mph) are not expected, but 3 have winds on the range 30-40 (19-25) at Aberystwyth harbour trap
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.