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Crystals ratings
Quality on a good day: 2.0
Consistency of Surf: 3.0
Difficulty Level: 3.0
Crowds: 3.0

Overall: 3.0

See all 18 ratings

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Surf Report Feed

Crystals Swell Statistics, November: Surf with Light or Offshore Winds

This image shows only the swells directed at Crystals that coincided with light winds or offshore conditions through a typical November. It is based on 2800 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours illustrate increasing wave sizes. Blue shows the smallest swells, less that 0.5m (1.5 feet) high. Green and yellow illustrate 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 was forecast.

The diagram indicates that the most common swell direction, shown by the longest spokes, was ENE, whereas the the dominant wind blows from the NW. 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 3% of the time, equivalent to 1 days. Open sea swells exceeding >3m (>10ft) are unlikely to occur in a normal November. Taking into account the fraction of these swells that coincided with predicted offshore winds, and given the fact that Crystals is slightly protected from open water swells, we calculate that clean surf can be found at Crystals about 3% of the time and that surf is spoilt by onshore wind 15% of the time. This is means that we expect 5 days with waves in a typical November, of which 1 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.