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Conditions at Pico Alto in December
December: Summer Returns to Pico Alto
December completes the journey back to summer. The average swell height drops to 4.9ft (1.5m), and the period shortens slightly to 12.8s. SSW swell still supplies 88 percent of the energy, with SW adding 10 percent, so the ideal southwest window remains intact. The height distribution shifts down: 50 percent of the waves fall in the 3-5ft (1-1.5m) class and 34 percent in the 5-6.5ft (1.5-2m) class, with only a small amount of bigger surf.
Wind conditions improve slightly in relative terms, but S and SSW winds still dominate about 88 percent of the time and ideal offshore wind is absent. Water temperature warms to 17.4°C and air temperatures average 19.3°C. December is a fun, more user-friendly month at Pico Alto, but for the full power and charging environment, winter is the season to wait for.
Average Spot conditions at Pico Alto in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Pico Alto 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 Pico Alto for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Pico Alto 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 Pico Alto.