Conditions at Oyambre in December
December: Peak Winter, Peak Performance
December is the statistical crown jewel of the year at Oyambre. Average swell height is 1.9m (6ft), period is 12.4s, and the ideal offshore wind window reaches its annual maximum of 46%. The swell is again almost entirely from the optimal north-west quadrant: 36.4% from the NW, 17.9% from the WNW and 13.4% from the NNW. Size is well distributed across the 1-2.5m (3-8ft) range, with a healthy share of serious waves and the best consistency of the year.
The wind regime is everything you want from a winter beach break in Spain. S winds peak at 15.5% and SSW reaches 8.1%, so proper offshore flow often aligns with the incoming long-period groundswell. Water temp has cooled to 14.1°C, air temperature averages 11.0°C, and rain is 3.57 mm/day. December is when Oyambre lives up to its reputation - heavy, grinding, long-period surf with offshore winds in the Northern Hemisphere winter.
Average Spot conditions at Oyambre in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Oyambre 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 Oyambre for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Oyambre 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 Oyambre.