Conditions at Getxo in December
December: Peak Winter Swell
December is peak winter and the second biggest wave month after January. Average swell height reaches 6.5ft (2.0m), period holds at 12.4s, and the NW sector produces 29.6% of all swell directions, backed by WNW at 20.4% and NNW at 10.1%. The North Atlantic is firing on all cylinders, and long-period groundswells wrap into the Bay of Biscay with real intensity. Air temperatures dip to 10.8°C and water hangs at 14.0°C, while rain falls at 3.66mm/day on average. Ideal offshore wind occurs 46% of the time, often as cold E, ESE, SE and SSE flow behind passing fronts. Christmas swells are a real thing here - expect large, powerful, hollow waves for experienced surfers.
Average Spot conditions at Getxo in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Getxo 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 Getxo for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Getxo 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 Getxo.