Conditions at Comporta in December
December: Big Swells and Cleanest Windows of the Year
December closes out the year in style, with another jump in energy. Average swell height reaches 6ft (1.9m), the average period is 12.6 seconds, and the ideal-wind percentage hits a yearly high of 52 percent. WNW swell accounts for 28 percent, NW for 26 percent, and W for another 11 percent, with a strong showing of 6-8ft (1.8-2.4m) waves and the occasional oversized set above 8ft (2.4m). The wind regime is excellent for the exposed west-facing sandbars: offshore NE/ENE/E/ESE winds are common, while cool air temperatures around 11.4°C make for crisp surf sessions. Water temperature is 15.7°C. For consistency, power and clean conditions, December is arguably the best month of the year at Comporta.
Average Spot conditions at Comporta in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Comporta 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 Comporta for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Comporta 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 Comporta.