Conditions at Cabedelo de Viana in December
December: Winter Arrives with Long-Period Muscle
December delivers almost the same winter punch as January. Average swell height is 2.6m (8.5ft), average period is a powerful 12.3s, and the swell rose shows the familiar healthy blend of WNW and NW with a growing WSW component. This is the start of the classic northern-hemisphere winter grind: deep Atlantic lows parade across the North Atlantic, and the energy arrives at Cabedelo with serious period and weight. Wave heights are spread across the 1.5m to 2.5m+ ranges, meaning there is often a proper swell running somewhere between double-overhead and charging. Wind statistics show 51 percent ideal conditions, with E/ESE and NNE winds occurring frequently enough for clean windows between fronts. Air temperatures average 10.6°C, water temperature is 13.6°C, and rain is persistent at 4.67 mm/day. December is for committed winter surfers - the payoff is some of the biggest, longest-period waves of the year.
Average Spot conditions at Cabedelo de Viana in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Cabedelo de Viana 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 Cabedelo de Viana for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cabedelo de Viana 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 Cabedelo de Viana.