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Joaquina ratings
Quality on a good day: 4.4
Consistency of Surf: 4.0
Difficulty Level: 3.4
Wind and Kite Surfing: 1.0
Crowds: 2.8

Overall: 3.3

See all 18 ratings

Based on 5 votes. Vote


Surf Report Feed

Joaquina Swell Statistics, October: Surf with Light or Offshore Winds

This image shows only the swells directed at Joaquina that coincided with light winds or offshore conditions through a typical October. It is based on 2976 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 commonly that size swell happens.

The diagram implies that the most common swell direction, shown by the biggest spokes, was SE, whereas the the dominant 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 12% of the time, equivalent to 4 days. Open sea swells exceeding >3m (>10ft) are unlikely to arise in a normal October but 6% of the time you can expect swell in the range 1.3-2m (4-6.5ft) 6%, equivalent to (2 days). Taking into account the fraction of these swells that coincided with predicted offshore winds, and given the fact that Joaquina is exposed to open water swells, we calculate that clean surf can be found at Joaquina about 12% of the time and that surf is spoilt by onshore wind 41% of the time. This is means that we expect 16 days with waves in a typical October, of which 4 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.