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Ackergill ratings
Quality on a good day: 2.0
Consistency of Surf: 2.0
Difficulty Level: 5.0
Crowds: 4.0

Overall: 3.5

See all 18 ratings

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Surf Report Feed

Ackergill Swell Statistics, Winter: Surf with Light or Offshore Winds

This image shows only the swells directed at Ackergill that coincided with light winds or offshore conditions through a typical northern hemisphere winter. It is based on 6931 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours represent increasing wave sizes. Very small swells of less than 0.5m (1.5 feet) high are shown in blue. Green and yellow show increasing swell sizes and red illustrates largest swells greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how commonly that size swell happens.

The diagram implies that the most common swell direction, shown by the largest spokes, was NNW, whereas the the most common 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 10% of the time, equivalent to 9 days. Open water swells exceeding >3m (>10ft) only arise 0.9% of the time in a typical northern hemisphere winter, equivalent to just one day but 3% of the time we expect swell in the range 2-3m (6.5-10ft) 3%, equivalent to (3 days). Taking into account the fraction of these swells that coincided with expected offshore winds, and given the fact that Ackergill is exposed to open water swells, we estimate that clean surf can be found at Ackergill about 10% of the time and that surf is messed up by onshore wind 12% of the time. This is means that we expect 20 days with waves in a typical northern hemisphere winter, of which 9 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.