South Jetty and Dog Beach Wind Stats

This picture illustrates how often and how strongly the wind blows from different directions through a typical May. The longest 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 3422 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to South Jetty and Dog Beach, located 35 km away (22 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 most common wind at South Jetty and Dog Beach blows from the SSW. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at South Jetty and Dog Beach. By contrast, dominant spokes show favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average May, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 39% of the time (12 days each May) and blows offshore 42% of the time (13 days in an average May). During a typical May winds exceeding >40kph (25mph) are not expected, but 1 have winds on the range 30-40 (19-25) at South Jetty and Dog Beach

read more