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Backdoor Voti
Qualità su una buona giornata: 3.5
Coerenza del surf: 5.0
Livello di difficoltà: 3.5
Wind e kite surf: 5.0
Folle: 2.5

Overall: 3.9

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Surf Report Feed

Backdoor Swell Statistics, Summer: Surf with Light or Offshore Winds

This image shows only the swells directed at Backdoor that coincided with light winds or offshore conditions through a typical northern hemisphere summer. It is based on 7266 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 show increasing swell sizes and biggest swells greater than >3m (>10ft) are shown in red. In either graph, the area of any colour is proportional to how commonly that size swell was forecast.

The diagram implies that the dominant swell direction, shown by the largest spokes, was NW, whereas the the prevailing 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 9% of the time, equivalent to 8 days. Open sea swells exceeding >3m (>10ft) are unlikely to occur in a normal northern hemisphere summer but 3% of the time you can expect swell in the range 1.3-2m (4-6.5ft) 3%, equivalent to (3 days). Taking into account the ratio of these swells that coincided with forecast offshore winds, and given the fact that Backdoor is exposed to open water swells, we think that that clean surf can be found at Backdoor about 9% of the time and that surf is spoilt by onshore wind 90% of the time. This is means that we expect 90 days with waves in a typical northern hemisphere summer, of which 8 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.