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Barra do Una Voti
Qualità su una buona giornata: 3.2
Coerenza del surf: 2.2
Livello di difficoltà: 1.8
Wind e kite surf: 1.3
Folle: 4.0

Overall: 3.5

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Barra do Una Swell Statistics, Febbraio: Surf with Light or Offshore Winds

This image shows only the swells directed at Barra do Una that coincided with light winds or offshore conditions over a normal February. It is based on 2102 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 show 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 commonly that size swell occurs.

The diagram implies that the most common swell direction, shown by the largest spokes, was SE, 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 59% of the time, equivalent to 17 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal February but 9% of the time you can expect swell in the range 1.3-2m (4-6.5ft) 9%, equivalent to (3 days). Taking into account the fraction of these swells that coincided with predicted offshore winds, and given the fact that Barra do Una is exposed to open water swells, we calculate that clean surf can be found at Barra do Una about 59% of the time and that surf is messed up by onshore wind 40% of the time. This is means that we expect 28 days with waves in a typical February, of which 17 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.