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Conditions at Cozumel in December
December: Winter Peaks, Caribbean Style
December closes out the year with the most consistent winter conditions the island will see. Average swell height is 2.3ft (0.7m), average period is 6.1s, and the swell rose is nicely distributed between E (32.4%), ESE (27.5%), ENE (14.4%) and NE (8.3%), with SE contributing 8.0%. This broad mix means the SE-facing beach is no longer fully reliant on pure trade-wind swell; instead, E and NE pulses generated by cold fronts and mid-latitude systems can wrap into the Yucatan Channel. The wind rose confirms the seasonal shift: ENE (19.0%), E (16.7%), NE (15.3%) and ESE (12.4%) remain dominant, but NNW (6.0%), NW (2.0%) and N (3.3%) give you real offshore options. Ideal wind sits at 3%. Sea surface temp has cooled to 27.4°C, air temps average 25.3°C and rainfall is a manageable 0.09in/day (2.20mm/day). It's not a pointbreak paradise, but December offers the island's best blend of rideable swell, cooler water and semi-frequent offshore windows - a small-wave shortboard, high-performance fish or a good log will be your best friends.
Average Spot conditions at Cozumel in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Cozumel 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 Cozumel for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cozumel 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 Cozumel.