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Jaws ratings
Quality on a good day: 4.0
Consistency of Surf: 2.5
Difficulty Level: 3.8
Wind and Kite Surfing: 2.0
Crowds: 2.8

Overall: 3.0

See all 18 ratings

Based on 4 votes. Vote


Surf Report Feed

Jaws Swell Statistics, September: Surf with Light or Offshore Winds

The rose diagram shows only the swells directed at Jaws that coincided with light winds or offshore conditions over a normal September and is based upon 2880 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 red shows biggest swells greater than >3m (>10ft). In either 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 NNE, whereas the the prevailing wind blows from the ENE. 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 sea swells exceeding >3m (>10ft) are unlikely to happen in a normal September. Taking into account the proportion of these swells that coincided with expected offshore winds, and given the fact that Jaws is exposed to open water swells, we estimate that clean surf can be found at Jaws about 5% of the time and that surf is messed up by onshore wind 77% of the time. This is means that we expect 25 days with waves in a typical September, of which 2 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.