Conditions at Porzcarn in December
December: Peak Winter Power
December brings Porzcarn to the peak of its winter power. Average swell height is 7ft (2.1m), average period stretches to 11.5s, and there is no shortage of high-energy groundswell marching out of the North Atlantic. The main directions are as good as it gets: W (20.9%), WNW (16.2%), WSW (11.5%) and NW (4.4%) combine for more than half of all observations, with many of those waves in the solid 6-8ft (1.8-2.4m) range and a scattering of bigger bombs. It is a month for big boards and heavy rubber. Yet the wind remains the great equalizer: ideal offshore conditions are only 15% of the time, while the onshore WSW-W-NW quadrant blows a third of the time. Storms are frequent and precipitation peaks at 3.66 mm/day, so you have to pick your moments. Air temps average 8.8°C and water temp has fallen to 11.9°C. When a clear, cold high-pressure cell sits over central Europe and sends an easterly offshore breeze into Porzcarn, December delivers some of the most epic, pumping surf of the entire year.
Average Spot conditions at Porzcarn in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Porzcarn 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 Porzcarn for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Porzcarn 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 Porzcarn.