Conditions at Supertubos in December
December: Winter Solstice Power
December delivers the full force of the North Atlantic winter. Average swell height is a thumping 8.9ft (2.7m) with an average period of 12.8s - an indication of long-period ground swell churning from distant gales. The swell direction is led by NW (18.6%), WNW (13.2%), and NNW (10.4%), with W (5.5%) and WSW (2.7%) also present, ensuring the beach's west-southwest orientation is fully enveloped in energy. The wave-height distribution skews significantly toward the 1.5-2.5m and >2.5m classes, which means Supertubos is often at the upper limit of its capacity, breaking as heavy, dredging barrels. Wind conditions are excellent for the peak season: ideal offshore winds (NE, ENE, E, ESE) combine for 23.6% of the total wind distribution, and onshore westerlies are actually less frequent than earlier in the autumn. With 43% of the time considered ideal, December offers the best chance of scoring flawless, thick-slab days. The air is crisp at 13.0°C and the water drops to 15.0°C - winter is here, and Supertubos is alive.
Average Spot conditions at Supertubos in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Supertubos 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 Supertubos for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Supertubos 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 Supertubos.