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Cliad Bay (Coll) ratings
Quality on a good day: 2.0
Consistency of Surf: 3.0
Crowds: 4.0

Overall: 3.8

See all 18 ratings

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Surf Report Feed

Cliad Bay (Coll) Swell Statistics, Summer: Surf with Light or Offshore Winds

This image shows only the swells directed at Cliad Bay (Coll) that coincided with light winds or offshore conditions over a normal 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 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 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 occurs.

The diagram implies that the dominant swell direction, shown by the largest spokes, was W, whereas the the prevailing 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 12% of the time, equivalent to 11 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal northern hemisphere summer. Taking into account the fraction of these swells that coincided with forecast offshore winds, and given the fact that Cliad Bay (Coll) is exposed to open water swells, we calculate that clean surf can be found at Cliad Bay (Coll) about 12% of the time and that surf is spoilt by onshore wind 44% of the time. This is means that we expect 51 days with waves in a typical northern hemisphere summer, of which 11 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.