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Chuns and Jocks Reefs ratings
Quality on a good day: 4.0
Consistency of Surf: 5.0
Difficulty Level: 3.0
Crowds: 2.0

Overall: 4.0

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Surf Report Feed

Chuns and Jocks Reefs Swell Statistics, February: Surf with Light or Offshore Winds

This image shows only the swells directed at Chuns and Jocks Reefs that coincided with light winds or offshore conditions through a typical February and is based upon 2102 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 show increasing swell sizes and highest swells greater than >3m (>10ft) are shown in red. In both graphs, the area of any colour is proportional to how often that size swell was forecast.

The diagram indicates that the prevailing swell direction, shown by the longest spokes, was NW, 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 54% of the time, equivalent to 15 days. Expect open water swells to exceed >3m (>10ft) 13% of the time (4 days). Taking into account the ratio of these swells that coincided with predicted offshore winds, and given the fact that Chuns and Jocks Reefs is exposed to open water swells, we estimate that clean surf can be found at Chuns and Jocks Reefs about 54% of the time and that surf is spoilt by onshore wind 24% of the time. This is means that we expect 22 days with waves in a typical February, of which 15 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.