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La Arena ratings
Quality on a good day: 2.0
Consistency of Surf: 4.0
Difficulty Level: 1.0
Crowds: 2.0

Overall: 2.5

See all 18 ratings

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Surf Report Feed

La Arena Swell Statistics, November: Surf with Light or Offshore Winds

This image shows only the swells directed at La Arena that coincided with light winds or offshore conditions through a typical November. It is based on 2809 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours show increasing wave sizes. The smallest swells, less than 0.5m (1.5 feet), high are coloured blue. Green and yellow represent increasing swell sizes and red illustrates the biggest swells, greater than >3m (>10ft). In either graph, the area of any colour is proportional to how commonly that size swell was forecast.

The diagram implies that the most common swell direction, shown by the longest spokes, was NW, whereas the the prevailing wind blows from the W. 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 24% of the time, equivalent to 7 days. Open water swells exceeding >3m (>10ft) only occur 1.7% of the time in a typical November, equivalent to just one day but 12% of the time we expect swell in the range 2-3m (6.5-10ft) 12%, equivalent to (4 days). Taking into account the fraction of these swells that coincided with predicted offshore winds, and given the fact that La Arena is slightly protected from open water swells, we estimate that clean surf can be found at La Arena about 24% of the time and that surf is spoilt by onshore wind 60% of the time. This is means that we expect 25 days with waves in a typical November, of which 7 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.