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Cliff Beach (Lewis) ratings
Quality on a good day: 3.0
Consistency of Surf: 4.0
Difficulty Level: 3.0
Crowds: 4.0

Overall: 4.0

See all 18 ratings

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Surf Report Feed

Cliff Beach (Lewis) Swell Statistics, July: Surf with Light or Offshore Winds

This image shows only the swells directed at Cliff Beach (Lewis) that coincided with light winds or offshore conditions through a typical July and is based upon 2480 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 represent increasing swell sizes and red represents the biggest 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 dominant swell direction, shown by the largest spokes, was WNW, whereas the the prevailing wind blows from the SW. 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 21% of the time, equivalent to 7 days. Open sea swells exceeding >3m (>10ft) are unlikely to occur in a normal July. Taking into account the fraction of these swells that coincided with expected offshore winds, and given the fact that Cliff Beach (Lewis) is exposed to open water swells, we estimate that clean surf can be found at Cliff Beach (Lewis) about 21% of the time and that surf is messed up by onshore wind 46% of the time. This is means that we expect 21 days with waves in a typical July, of which 7 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.