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Conditions at Punta Roca in December
December: The Return Of Glass
December wraps up the year with the strongest seasonal reversal of all: ideal wind jumps to 65% as the North Atlantic high reasserts itself and drives the northeast trade winds back across Panama. The wave window becomes cleaner and more onshore-free, with SSW swell accounting for 96% of observations in the 2-3ft (0.6-0.9m) range. Average swell height is 0.7m and the average period is 12.0 seconds - smaller but far more fun than the messy swells of September and October. Rainfall drops to 3.44 mm/day, signalling the start of the dry season, and water temperature remains a warm 28.3°C. December is all about quality over quantity: glassy dawn sessions, long peeling walls and that classic Punta Roca glide. It is the perfect time to be in the water.
Average Spot conditions at Punta Roca in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Punta Roca 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 Punta Roca for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Punta Roca 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 Punta Roca.