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Baie de Douarnenez ratings
Quality on a good day: 3.0
Consistency of Surf: 3.0
Difficulty Level: 2.0
Crowds: 3.0

Overall: 3.0

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Surf Report Feed

Baie de Douarnenez Swell Statistics, Autumn: Surf with Light or Offshore Winds

The rose diagram shows only the swells directed at Baie de Douarnenez that coincided with light winds or offshore conditions over a normal northern hemisphere autumn and is based upon 8724 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 largest swells greater than >3m (>10ft) are shown in red. In each graph, the area of any colour is proportional to how often that size swell occurs.

The diagram indicates that the prevailing swell direction, shown by the largest spokes, was W, whereas the the most common wind blows from the WSW. 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 18% of the time, equivalent to 16 days. Open water swells exceeding >3m (>10ft) only happen 0.9% of the time in a typical northern hemisphere autumn, equivalent to just one day but 6% of the time we expect swell in the range 2-3m (6.5-10ft) 6%, equivalent to (5 days). Taking into account the fraction of these swells that coincided with predicted offshore winds, and given the fact that Baie de Douarnenez is slightly protected from open water swells, we calculate that clean surf can be found at Baie de Douarnenez about 18% of the time and that surf is messed up by onshore wind 61% of the time. This is means that we expect 72 days with waves in a typical northern hemisphere autumn, of which 16 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.