Arugam Bay Wind Statistics, November averages since 2006
The rose diagram describes how frequently and how strongly the wind blows from different directions through a typical November. The largest 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 2387 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Arugam Bay, located 42 km away (26 miles). There are insufficient 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 Arugam Bay blows from the S. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Arugam Bay. By contrast, dominant spokes show favoured directions, and the more dark 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 (pale blue) about 28% of the time (8 days each November) and blows offshore 54% of the time (16 days in an average November). During a typical November winds exceeding >40kph (25mph) are not expected, but 1 have winds on the range 30-40 (19-25) at Arugam Bay
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.