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Barra do Douro Notaciones
Calidad cuándo Funciona: 3.0
Consistencia de Olas: 3.0
Dificultad: 3.0
Gente al Agua: 3.0

Overall: 3.2

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Surf Report Feed

Estadísticas de Olas para Barra do Douro, Otoño: Olas con Vientos Ligeros o Terrales

This image shows only the swells directed at Barra do Douro that coincided with light winds or offshore conditions through a typical northern hemisphere autumn. It is based on 7252 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 show increasing swell sizes and red illustrates the highest swells, greater than >3m (>10ft). In either graph, the area of any colour is proportional to how often that size swell occurs.

The diagram indicates that the most common swell direction, shown by the largest spokes, was WNW, whereas the the dominant wind blows from the NNW. 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 32% of the time, equivalent to 29 days. Open water swells exceeding >3m (>10ft) only happen 1.2% of the time in a typical northern hemisphere autumn, equivalent to just one day but 8% of the time we expect swell in the range 2-3m (6.5-10ft) 8%, equivalent to (7 days). Taking into account the fraction of these swells that coincided with forecast offshore winds, and given the fact that Barra do Douro is exposed to open water swells, we calculate that clean surf can be found at Barra do Douro about 32% of the time and that surf is blown out by onshore wind 64% of the time. This is means that we expect 87 days with waves in a typical northern hemisphere autumn, of which 29 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.