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El Mongol ratings
Consistency of Surf: 4.0
Difficulty Level: 3.0
Crowds: 2.0

Overall: 3.2

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Surf Report Feed

El Mongol Swell Statistics, December: Surf with Light or Offshore Winds

This image shows only the swells directed at El Mongol that coincided with light winds or offshore conditions over a normal 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 represent increasing wave sizes. Very small swells of less than 0.5m (1.5 feet) high are shown in blue. Green and yellow represent increasing swell sizes and red shows the highest swells, greater than >3m (>10ft). In each graph, the area of any colour is proportional to how frequently that size swell happens.

The diagram suggests that the most common swell direction, shown by the longest spokes, was NW, whereas the the dominant 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 28% of the time, equivalent to 8 days. Open water swells exceeding >3m (>10ft) only arise 4% of the time in a typical December, equivalent to just one day but 16% of the time we expect swell in the range 2-3m (6.5-10ft) 16%, equivalent to (5 days). Taking into account the fraction of these swells that coincided with forecast offshore winds, and given the fact that El Mongol is slightly protected from open water swells, we think that that clean surf can be found at El Mongol about 28% of the time and that surf is blown out by onshore wind 53% of the time. This is means that we expect 24 days with waves in a typical December, of which 8 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.