Conditions at Cabo do Mundo in December
December: Winter's Peak
December delivers the full power of the North Atlantic to Cabo do Mundo. The average swell height reaches 8ft (2.5m) and the period remains long at 12.5s, producing some of the biggest, most powerful waves of the year. The swell directions are distributed across NW (19.8%), WNW (18.5%), W (7.8%) and NNW (6.3%), with a notable increase in WSW (3.6%) and SW (2.2%) energy, giving the beach more exposure to the full western swell window. The wind data is excellent for surfers: ideal offshore wind occurs 49% of the time, the highest of any month. E (13.3%) and ESE (9.2%) winds are especially prominent, with SE, SSE and S winds also providing offshore or light cross-offshore conditions. This combination - strong W/NW groundswell and offshore east winds - is what makes December one of the best surf months of the year. Water temperature drops to 13.9°C and winter air sits at 11.3°C, so bring thick rubber and a good sense of adventure.
Average Spot conditions at Cabo do Mundo in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Cabo do Mundo 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 Cabo do Mundo for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cabo do Mundo 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 Cabo do Mundo.