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Aberystwyth harbour trap ratings
Quality on a good day: 4.3
Consistency of Surf: 3.3
Difficulty Level: 3.0
Wind and Kite Surfing: 1.0
Crowds: 2.7

Overall: 3.6

See all 18 ratings

Based on 3 votes. Vote


Surf Report Feed

Aberystwyth harbour trap Swell Statistics, Winter: All Swell – Any Wind

The graph shows the combination of swells directed at Aberystwyth harbour trap through an average northern hemisphere winter. It is based on 6930 NWW3 model predictions since 2006 (values every 3 hours). The wave model does not forecast surf and wind right at the coastline so we have chosen the best grid node based on what we know about Aberystwyth harbour trap. In this particular case the best grid node is 29 km away (18 miles).

The rose diagram illustrates the distribution of swell sizes and directions, while the graph at the bottom shows the same thing but without direction information. Five colours illustrate increasing wave sizes. Blue shows the smallest swells, less that 0.5m (1.5 feet) high. These happened 34% of the time. Green and yellow illustrate increasing swell sizes and biggest swells greater than >3m (>10ft) are shown in red. In either graph, the area of any colour is proportional to how frequently that size swell happens.

The diagram suggests that the most common swell direction, shown by the longest spokes, was SW (which was the same as the prevailing wind direction). Because the wave model grid is offshore, sometimes a strong offshore wind blows largest waves away from Aberystwyth harbour trap and away from the coast. We group these with the no surf category of the bar chart. To keep it simple we don't show these in the rose graph. Because wind determines whether or not waves are surfable at Aberystwyth harbour trap, you can load a different image that shows only the swells that were expected to coincide with glassy or offshore wind conditions. In a typical northern hemisphere winter, swells large enough to cause good for surfing waves at Aberystwyth harbour trap run for about 43% of the time.

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.