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Notación del Spot de Surf

Notar Isla Negra


Surf Report Feed

Estadísticas de Olas para Isla Negra, Verano: Olas con Vientos Ligeros o Terrales

The rose diagram shows only the swells directed at Isla Negra that coincided with light winds or offshore conditions through a typical southern hemisphere summer. It is based on 7765 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 red shows the highest swells, greater than >3m (>10ft). In either graph, the area of any colour is proportional to how commonly that size swell was forecast.

The diagram implies that the prevailing swell direction, shown by the largest spokes, was WNW, whereas the the dominant wind blows from the SW. 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 17% of the time, equivalent to 15 days. Open sea swells exceeding >3m (>10ft) are unlikely to occur in a normal southern hemisphere summer but 7% of the time we expect swell in the range 2-3m (6.5-10ft) 7%, equivalent to (6 days). Taking into account the proportion of these swells that coincided with forecast offshore winds, and given the fact that Isla Negra is exposed to open water swells, we estimate that clean surf can be found at Isla Negra about 17% of the time and that surf is blown out by onshore wind 7% of the time. This is means that we expect 22 days with waves in a typical southern hemisphere summer, of which 15 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.