Statistiques de Houle pour Awatoto Rivermouth, Octobre: Vagues avec Vents Légers ou Favorables.
This image shows only the swells directed at Awatoto Rivermouth that coincided with light winds or offshore conditions over a normal October. It is based on 2477 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours show increasing wave sizes. The smallest swells, less than 0.5m (1.5 feet), high are coloured blue. Green and yellow illustrate increasing swell sizes and biggest swells greater than >3m (>10ft) are shown in red. In both graphs, the area of any colour is proportional to how often that size swell happens.
The diagram indicates that the prevailing swell direction, shown by the biggest spokes, was ESE, whereas the the prevailing wind blows from the WNW. The chart at the bottom shows the same thing but without direction information. For example, swells larger than 1.5 feet (0.5m) coincided with good wind conditions 21% of the time, equivalent to 7 days. Open sea swells exceeding >3m (>10ft) are unlikely to arise in a normal October. Taking into account the proportion of these swells that coincided with expected offshore winds, and given the fact that Awatoto Rivermouth is exposed to open water swells, we estimate that clean surf can be found at Awatoto Rivermouth about 21% of the time and that surf is spoilt by onshore wind 22% of the time. This is means that we expect 13 days with waves in a typical October, of which 7 days should be surfable.
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.