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Surf Break Rating

Rate Waihau Bay


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Waihau Bay Wind Statistics, March averages since 2006

The graph shows how frequently and how strongly the wind blows from different directions over a normal March. The largest 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 2964 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Waihau Bay, located 15 km away (9 miles). There are not enough 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 dominant wind at Waihau Bay blows from the NNE. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Waihau Bay. On the other hand, dominant spokes illustrate favoured directions, and the more dark blue, the stronger the wind. Spokes point in the direction the wind blows from. During a typical March, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 4% of the time (1 days each March) and blows offshore just 9% of the time (2 days in an average March). Over an average March wind stronger than >40kph (25mph) was predicted for only a single days at Waihau 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.