Conditions at Preciosa in December
December: Peak Season Arrives
December is the crown jewel of the Preciosa calendar. Average swell height reaches 1.7m (5.6ft) with an average period of 9.4s, matching January as the biggest and most consistent month of the year. The swell is dominated by ENE (42.7 percent), NE (26.9 percent) and NNE (11 percent), with N and NNW also contributing; this gives the beach a steady diet of powerful, punchy, rideable groundswell. The main obstacle is wind. E (30.2 percent) and ESE (25 percent) trades still dominate, and the ideal offshore window is only about 24 percent of the time, so successful sessions usually hinge on early-morning light winds or a transient S/SW flow ahead of a winter front. Air temperature averages 25.2°C (18.8-32.3°C), water temperature is 27.2°C, and rainfall is 1.84mm/day. When the winter swell and the offshore wind align, Preciosa delivers some of the finest surf of the year.
Average Spot conditions at Preciosa in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Preciosa 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 Preciosa for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Preciosa 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 Preciosa.