Conditions at Cortegaoa in March
March: Winter's Last Gasp
March keeps the winter momentum going. Average swell height is 5ft (1.6m) with a still-strong 12.0s period, and ideal wind is 37%. Swell direction still favors WNW (42.2%) and NW (26.6%) with a solid W (16.9%) component. So Cortegaoa remains well-exposed to the North Atlantic. However, the wind regime begins to shift: northerly winds (NNW at 18.8% and NW at 6.6%) increase, cutting into the offshore percentages. Still, when the easterlies align, the waves are clean, powerful, and hollow. Air temps rise to 12.4°C (54°F), water temps hold at 13.8°C (57°F), and precipitation drops to 2.97 mm/day. March is a transition month where winter swells meet spring-like conditions - a great window for serious surfers.
Average Spot conditions at Cortegaoa in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Cortegaoa during March. 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 Cortegaoa for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cortegaoa for March. 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 Cortegaoa.