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Belle Ile - Les Donnants ratings
Quality on a good day: 3.0
Consistency of Surf: 4.0
Difficulty Level: 1.0
Crowds: 2.0

Overall: 2.4

See all 18 ratings

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Surf Report Feed

Belle Ile - Les Donnants Swell Statistics, All Year: Surf with Light or Offshore Winds

This image shows only the swells directed at Belle Ile - Les Donnants that coincided with light winds or offshore conditions through a typical year. It is based on 33228 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours represent increasing wave sizes. Very small swells of less than 0.5m (1.5 feet) high are shown in blue. Green and yellow illustrate increasing swell sizes and red illustrates the biggest swells, greater than >3m (>10ft). In each graph, the area of any colour is proportional to how frequently that size swell was forecast.

The diagram suggests that the most common swell direction, shown by the largest spokes, was W, 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 16% of the time, equivalent to 58 days. Open water swells exceeding >3m (>10ft) only occur 0.3% of the time in a typical year, equivalent to just one day but 4% of the time we expect swell in the range 2-3m (6.5-10ft) 4%, equivalent to (15 days). Taking into account the proportion of these swells that coincided with forecast offshore winds, and given the fact that Belle Ile - Les Donnants is exposed to open water swells, we estimate that clean surf can be found at Belle Ile - Les Donnants about 16% of the time and that surf is blown out by onshore wind 37% of the time. This is means that we expect 193 days with waves in a typical year, of which 58 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.