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Jupiter Inlet South Jetty ratings
Quality on a good day: 3.5
Consistency of Surf: 2.0
Difficulty Level: 3.5
Wind and Kite Surfing: 1.0
Crowds: 2.0

Overall: 3.3

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Surf Report Feed

Jupiter Inlet South Jetty Swell Statistics, Autumn: Surf with Light or Offshore Winds

This image shows only the swells directed at Jupiter Inlet South Jetty that coincided with light winds or offshore conditions through a typical northern hemisphere autumn. It is based on 8476 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 represent increasing swell sizes and red represents highest swells greater than >3m (>10ft). In each 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 largest spokes, was NE, whereas the the dominant wind blows from the E. 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 4% of the time, equivalent to 4 days. Open sea swells exceeding >3m (>10ft) are unlikely to arise in a normal northern hemisphere autumn but 3% of the time you can expect swell in the range 1.3-2m (4-6.5ft) 3%, equivalent to (3 days). Taking into account the fraction of these swells that coincided with expected offshore winds, and given the fact that Jupiter Inlet South Jetty is slightly protected from open water swells, we estimate that clean surf can be found at Jupiter Inlet South Jetty about 4% of the time and that surf is messed up by onshore wind 21% of the time. This is means that we expect 23 days with waves in a typical northern hemisphere autumn, of which 4 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.