Pohoiki Wind Statistics, August averages since 2006
The rose diagram shows how often 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 darkest shade of blue showing the strongest winds. It is based on 1984 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Pohoiki, located 34 km away (21 miles). There are too few 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 Pohoiki blows from the E. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Pohoiki. Converseley, dominant spokes represent 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 4% of the time (1 days each August) and blows offshore just 5% of the time (2 days in an average August). Over an average August winds exceeding >40kph (25mph) are not expected, but 0 have winds on the range 30-40 (19-25) at Pohoiki
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.