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Conditions at Cayo Coco in December
December: Peak Chances for Clean North Swell
December is the last and in many ways the most promising month of the year for Cayo Coco. The average swell height holds at 2.6ft (0.8m), the period stays at 3.4s, and the optimal N/NNW/NW quadrant makes up just over 10% of the spectrum - the second-best share of the year behind January. ENE and E swells together still dominate at about 63%, but winter cold fronts are now regular visitors to the Gulf of Mexico and the Straits of Florida. These fronts are the spot's saving grace: as they push through, winds shift from the easterly trades into the S/SSW/SW quadrant, groom the surface, and allow the N/NW swell to wrap into the beach. The ideal offshore wind window is still only 1%, so patience is essential, and the sub-5s average period means the surf rarely gets powerful. That said, the best December days combine 2-4ft (0.6-1.2m) NNW swell, light offshore flow, 24.7°C air and 26.1°C water - the best surf weather of the year. Rainfall is low at 0.78mm/day, making it a great month to chase the front.
Average Spot conditions at Cayo Coco in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Cayo Coco 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 Cayo Coco for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cayo Coco 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 Cayo Coco.