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Conditions at Boca Damas in December
December: Clean, Small, and Back to Dry-Season Surf
December closes the year by resetting the Boca Damas pattern to smaller, cleaner surf. The average swell height falls to 1.0m (3.3ft), average period to 12.1s, and precipitation drops sharply to 2.82 mm/day. Swell direction remains superb - SSW accounts for 95% of the energy - but the size is more intimate: 48% of waves are 2-3ft (0.5-1m) and 51% are 3-5ft (1-1.5m), with only a rare 5ft set. The positive side is wind: ideal offshore flow returns to 22% of the time, and the dry-season N/NNE/NE/NNW surges groom the waves nicely. Most onshore winds are very light, so surface conditions are generally better than in the size-heavy wet season. With water at 28.1°C and air at 25.6°C, December is a warm, fun, summer-like surf month in the middle of the northern winter - perfect for logging and trimming.
Average Spot conditions at Boca Damas in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Boca Damas 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 Boca Damas for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Boca Damas 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 Boca Damas.