Conditions at El Mongol in December
December: Winter Is Here
December delivers the most consistent clean winter surf of the year. Average swell height is 5-6ft (1.7m), period is a strong 12.3s, and ideal surf winds blow 60% of the time, the best monthly percentage of the whole year. Swell direction remains anchored in the northwest quadrant, with NW at 39%, NNW at 18% and WNW at 15%. Wave heights concentrate between 5-8ft (1.5-2.5m), meaning a lot of powerful, grinding peaks. Southerly winds are the most common at 13.7%, with W, WSW, SSW and SW all well represented, keeping the favourable wind window wide. Water temperature drops to 13.9°C, air temps average 9.8°C, and precipitation sits at 3.33mm/day. With the North Atlantic storm track fully active, December is pure winter gold at El Mongol.
Average Spot conditions at El Mongol in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at El Mongol during December. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at El Mongol for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at El Mongol for December. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at El Mongol.