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San Miguel - Baixa de Viola ratings
Quality on a good day: 2.0
Consistency of Surf: 4.0
Crowds: 5.0

Overall: 3.4

See all 18 ratings

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Surf Report Feed

San Miguel - Baixa de Viola Swell Statistics, December: Surf with Light or Offshore Winds

This image shows only the swells directed at San Miguel - Baixa de Viola that coincided with light winds or offshore conditions through a typical December. It is based on 2457 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 illustrate 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 frequently that size swell occurs.

The diagram suggests that the most common swell direction, shown by the longest spokes, was NW, whereas the the prevailing wind blows from the SW. 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 32% of the time, equivalent to 10 days. Expect open water swells to exceed >3m (>10ft) 5% of the time (2 days). Taking into account the ratio of these swells that coincided with forecast offshore winds, and given the fact that San Miguel - Baixa de Viola is exposed to open water swells, we estimate that clean surf can be found at San Miguel - Baixa de Viola about 32% of the time and that surf is blown out by onshore wind 42% of the time. This is means that we expect 22 days with waves in a typical December, of which 10 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.