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Balephetrish (Tiree) ratings
Quality on a good day: 4.0
Consistency of Surf: 3.0
Crowds: 4.0

Overall: 4.2

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Surf Report Feed

Balephetrish (Tiree) Swell Statistics, December: Surf with Light or Offshore Winds

This image shows only the swells directed at Balephetrish (Tiree) that coincided with light winds or offshore conditions through a typical December. It is based on 2953 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours show increasing wave sizes. The smallest swells, less than 0.5m (1.5 feet), high are coloured blue. Green and yellow illustrate increasing swell sizes and red illustrates biggest swells greater than >3m (>10ft). In either graph, the area of any colour is proportional to how commonly that size swell occurs.

The diagram implies that the most common swell direction, shown by the biggest spokes, was W, 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 31% of the time, equivalent to 9 days. Expect open water swells to exceed >3m (>10ft) 13% of the time (4 days). Taking into account the ratio of these swells that coincided with expected offshore winds, and given the fact that Balephetrish (Tiree) is exposed to open water swells, we estimate that clean surf can be found at Balephetrish (Tiree) about 31% of the time and that surf is spoilt by onshore wind 45% of the time. This is means that we expect 23 days with waves in a typical December, of which 9 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.