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Annascaul Rivermouth ratings
Quality on a good day: 2.0
Consistency of Surf: 5.0
Difficulty Level: 3.0
Crowds: 3.0

Overall: 3.5

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Surf Report Feed

Annascaul Rivermouth Swell Statistics, January: Surf with Light or Offshore Winds

This image shows only the swells directed at Annascaul Rivermouth that coincided with light winds or offshore conditions through a typical January and is based upon 2372 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 illustrate 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 commonly that size swell occurs.

The diagram implies that the most common swell direction, shown by the biggest spokes, was WSW (which was the same as the dominant wind direction). 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 2 days. Open water swells exceeding >3m (>10ft) only happen 1.9% of the time in a typical January, equivalent to just one day. Taking into account the ratio of these swells that coincided with expected offshore winds, and given the fact that Annascaul Rivermouth is quite sheltered from open water swells, we think that that clean surf can be found at Annascaul Rivermouth about 5% of the time and that surf is blown out by onshore wind 61% of the time. This is means that we expect 20 days with waves in a typical January, of which 2 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.