uk es it fr pt nl
Laggan Bay (Islay) ratings
Quality on a good day: 4.0
Consistency of Surf: 3.0
Difficulty Level: 3.0
Wind and Kite Surfing: 5.0
Crowds: 2.0

Overall: 3.2

See all 18 ratings

Based on 2 votes. Vote

Surf Report Feed

Laggan Bay (Islay) Swell Statistics, Winter: Surf with Light or Offshore Winds

This image shows only the swells directed at Laggan Bay (Islay) that coincided with light winds or offshore conditions through a typical northern hemisphere winter. It is based on 7765 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 show increasing swell sizes and highest swells greater than >3m (>10ft) are shown in red. In each graph, the area of any colour is proportional to how often that size swell occurs.

The diagram indicates that the dominant swell direction, shown by the largest spokes, was WNW, whereas the the dominant 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 5% of the time, equivalent to 5 days. Open water swells exceeding >3m (>10ft) only happen 0.6% of the time in a typical northern hemisphere winter, equivalent to just one day but 3% of the time can expect small swell in the range 1.3-2m (4-6.5ft) 3%, equivalent to (3 days). Taking into account the fraction of these swells that coincided with expected offshore winds, and given the fact that Laggan Bay (Islay) is slightly protected from open water swells, we calculate that clean surf can be found at Laggan Bay (Islay) about 5% of the time and that surf is spoilt by onshore wind 58% of the time. This is means that we expect 57 days with waves in a typical northern hemisphere winter, of which 5 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.