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Notation de Spot de Surf

Noter Diamond Head


Surf Report Feed

Statistiques de Houle pour Diamond Head, Octobre: Vagues avec Vents Légers ou Favorables.

This image shows only the swells directed at Diamond Head that coincided with light winds or offshore conditions through a typical October and is based upon 2976 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours illustrate increasing wave sizes. Blue shows the smallest swells, less that 0.5m (1.5 feet) high. Green and yellow represent increasing swell sizes and largest swells greater than >3m (>10ft) are shown in red. In both graphs, the area of any colour is proportional to how commonly that size swell was forecast.

The diagram implies that the most common swell direction, shown by the largest spokes, was E, whereas the the most common wind blows from the NE. 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 13% of the time, equivalent to 4 days. Open sea swells exceeding >3m (>10ft) are unlikely to occur in a normal October. Taking into account the ratio of these swells that coincided with expected offshore winds we calculate that clean surf can be found at Diamond Head about 13% of the time and that surf is blown out by onshore wind 34% of the time. This is means that we expect 15 days with waves in a typical October, of which 4 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.