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Barra do Douro ratings
Quality on a good day: 3.0
Consistency of Surf: 3.0
Difficulty Level: 3.0
Crowds: 3.0

Overall: 3.2

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Surf Report Feed

Barra do Douro Swell Statistics, Winter: Surf with Light or Offshore Winds

This image shows only the swells directed at Barra do Douro that coincided with light winds or offshore conditions over a normal northern hemisphere winter and is based upon 8485 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 represents the biggest swells, greater than >3m (>10ft). In each graph, the area of any colour is proportional to how commonly that size swell happens.

The diagram implies that the most common swell direction, shown by the biggest spokes, was WNW, whereas the the prevailing wind blows from the ENE. 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 37% of the time, equivalent to 34 days. Expect open water swells to exceed >3m (>10ft) 2% of the time (2 days). Taking into account the ratio 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 37% of the time and that surf is messed up by onshore wind 61% of the time. This is means that we expect 89 days with waves in a typical northern hemisphere winter, of which 34 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.