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Conditions at Cabo de San Antonio in December
December: Winter Baseline Establishes
December delivers essentially the same stats as November: 3.6ft (1.1m) average swell, 6.5s period, and a mix of ENE/E/ESE trade windswell plus NNW/NNE winter pulses. The wave rose shows E (13.7%), ESE (12.6%), NNE (12.4%), NE (11.9%), and NNW (13.1%) all contributing, with the SSE-SW window at just 3.7%. Ideal offshore winds are 16%. The best days usually come when a cold front pushes through the Gulf and a N/NNW wind flips the texture offshore, grooming the moderate ENE/ESE swell into cleaner wave faces. The air is cooler at 25.5°C, water temperature is 26.8°C, and rainfall is low at 1.29 mm/day. It is not a winter groundswell paradise, but December is one of the more dependable months to find something surfable at the cape.
Average Spot conditions at Cabo de San Antonio in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Cabo de San Antonio 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 Cabo de San Antonio for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cabo de San Antonio 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 Cabo de San Antonio.