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Notation de Spot de Surf

Noter Doughnuts Backreef


Surf Report Feed

Statistiques de Houle pour Doughnuts Backreef, Juillet: Vagues avec Vents Légers ou Favorables.

The rose diagram shows only the swells directed at Doughnuts Backreef that coincided with light winds or offshore conditions over a normal July 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 illustrate increasing swell sizes and biggest swells greater than >3m (>10ft) are shown in red. In each graph, the area of any colour is proportional to how commonly that size swell happens.

The diagram implies that the prevailing swell direction, shown by the longest spokes, was SSW, 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 39% of the time, equivalent to 12 days. Open sea swells exceeding >3m (>10ft) are unlikely to arise in a normal July but 13% of the time we expect swell in the range 2-3m (6.5-10ft) 13%, equivalent to (4 days). Taking into account the proportion of these swells that coincided with predicted offshore winds, and given the fact that Doughnuts Backreef is exposed to open water swells, we think that that clean surf can be found at Doughnuts Backreef about 39% of the time and that surf is messed up by onshore wind 55% of the time. This is means that we expect 29 days with waves in a typical July, of which 12 days should be clean enough to surf.

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.