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Chacahua ratings
Quality on a good day: 3.0
Consistency of Surf: 3.0
Difficulty Level: 1.0
Crowds: 4.0

Overall: 2.8

See all 18 ratings

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Surf Report Feed

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

This image shows only the swells directed at Chacahua 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 illustrate increasing swell sizes and highest 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 occurs.

The diagram suggests that the most common swell direction, shown by the longest spokes, was SSW, whereas the the dominant 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 64% of the time, equivalent to 58 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal northern hemisphere autumn but 5% of the time we expect swell in the range 2-3m (6.5-10ft) 5%, equivalent to (5 days). Taking into account the fraction of these swells that coincided with expected offshore winds, and given the fact that Chacahua is exposed to open water swells, we estimate that clean surf can be found at Chacahua about 64% of the time and that surf is messed up by onshore wind 36% of the time. This is means that we expect 91 days with waves in a typical northern hemisphere autumn, of which 58 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.