Botany Bay Wind Stats

This picture shows how commonly and how strongly the wind blows from different directions over a normal August. The longest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with the strongest winds shown by the darkest shade of blue. It is based on 3574 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Botany Bay, located 16 km away (10 miles). There are insufficient 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 prevailing wind at Botany Bay blows from the NE. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Botany Bay. Converseley, 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. During a typical August, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 1.1% of the time (0 days each August) and blows offshore just 70% of the time (21 days in an average August). Over an average August wind stronger than >40kph (25mph) was predicted for only a single days at Botany Bay

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