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Assateague ratings
Quality on a good day: 4.0
Consistency of Surf: 4.0
Difficulty Level: 3.1
Wind and Kite Surfing: 4.0
Crowds: 3.7

Overall: 3.8

See all 18 ratings

Based on 9 votes. Vote


Surf Report Feed

Assateague Swell Statistics, Autumn: Surf with Light or Offshore Winds

This image shows only the swells directed at Assateague that coincided with light winds or offshore conditions through a typical northern hemisphere autumn. It is based on 8724 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 represent increasing swell sizes and largest 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 happens.

The diagram implies that the dominant swell direction, shown by the biggest spokes, was SE, whereas the the most common wind blows from the NW. 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 27% of the time, equivalent to 25 days. Open sea swells exceeding >3m (>10ft) are unlikely to arise in a normal northern hemisphere autumn but 6% of the time you can expect swell in the range 1.3-2m (4-6.5ft) 6%, equivalent to (5 days). Taking into account the proportion of these swells that coincided with forecast offshore winds, and given the fact that Assateague is exposed to open water swells, we calculate that clean surf can be found at Assateague about 27% of the time and that surf is spoilt by onshore wind 40% of the time. This is means that we expect 61 days with waves in a typical northern hemisphere autumn, of which 25 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.