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Conditions at Puerto Madero in December
December: Small but Clean Holiday Waves
December rounds out the year with a return to smaller but highly surfable conditions. Average swell height is around 3.5ft (1.1m), average period sits at 11.8s, and the directional spread is more westerly than most of the year: SSW/SW/WSW combine for around 74%, but a notable 23.8% arrives from W and WNW, making shadow-prone days at this SW-facing spot less aligned. Most surf falls in the 2-5ft (0.5-1.5m) range, with only a touch of 5-6.5ft (1.5-2m) from W/WNW. The real story is the wind: ideal offshore conditions run 59%, one of the highest marks of the year, so the smaller waves are usually clean and lined up. Air temperatures hold at 27.7°C with a range of 23.7-32°C, water temperature settles at 28.8°C, and rain is minimal at 0.45 mm/day. December is a longboard and funboard month, groomed waist-to-chest-high waves and the odd west-northwest window for the regular-foots.
Average Spot conditions at Puerto Madero in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Puerto Madero 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 Puerto Madero for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Puerto Madero 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 Puerto Madero.