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Conditions at Playa Jaco in December
December: The Return of Clean and Consistent Surf
December marks the start of the best surf season. The average swell height eases to 1.0m, the period sits at a healthy 12.3s, and the SSW direction is overwhelming at 95%, with nearly 49% of the waves in the solid 3-5ft (1-1.5m) range and 45% in the fun-sized 2-3ft (0.5-1m) range. The offshore N/NNE/NE/ENE wind frequency jumps back up, ideal wind reaches 34%, and the NW/NNW cross-shore flow helps groom the beach. Rain drops to just 2.82 mm/day, air temperatures are 26°C (21-31°C), and water temperature is 28.1°C. December offers that classic dry-season combination of long-period groundswell and glassy morning winds, setting the stage for the cleanest months ahead.
Average Spot conditions at Playa Jaco in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Playa Jaco 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 Playa Jaco for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Playa Jaco 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 Playa Jaco.