Tolaga Bay Wind Statistics, Summer averages since 2006
The graph describes how frequently and how strongly the wind blows from different directions over a normal southern hemisphere summer. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue implies the strength, with dark blue strongest. It is based on 6365 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Tolaga Bay, located 21 km away (13 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 Tolaga Bay blows from the E. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Tolaga Bay. By contrast, dominant spokes represent favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. During a typical southern hemisphere summer, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 7% of the time (6 days each southern hemisphere summer) and blows offshore 17% of the time (15 days in an average southern hemisphere summer). Over an average southern hemisphere summer wind stronger than >40kph (25mph) was expected for only a single days at Tolaga 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.