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Conditions at Costa Azul in December
December: Peak Season for Directional Surf
December is the best month of the year for surf at Costa Azul. The average swell height is 0.8m (2.5ft) - not the biggest - but the directional window that suits the break finally opens properly. ENE through SE swells total over 6.5% of the spectrum, the highest of any month, with SE alone delivering 2.3%. S swells are still present (40.5%) but less dominant, and SSW drops to 28.8%. The long period of 11.9 seconds is in the powerful category, albeit at the lower end. Ideal wind percentages are 69%, but the offshore quadrant (NNW, NW, WNW, W) still contributes a solid portion of the data. Water temp is a seasonal 24.5°C, air 22.1°C, and rainfall remains low (0.36 mm/day). For the surfer, this means consistent, clean, east-angled groundswell arriving under morning offshore conditions. It's the time when the sandbars finally align, offering shoulder-high rippable waves with a chance for a few overhead bombs when the fetch is strong. If you're planning a trip to Costa Azul, December is the safest bet.
Average Spot conditions at Costa Azul in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Costa Azul 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 Costa Azul for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Costa Azul 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 Costa Azul.