Conditions at Foz do Arelho in March
March: Winter-Sized Swell with Spring Hiccups
March is still firmly inside the prime season. Average wave height sits at 8ft (2.5m), period at 12.4s, and the swell direction field is almost perfect: NW contributes 21.2 percent, WNW 16.3 percent and NNW 13.5 percent, with W adding secondary fetch. The North Atlantic is transitioning, however, and so is the wind. Ideal offshore wind drops to 23 percent as the Azores High begins to nudge northward and NNW winds build beyond 20 percent of the wind rose. Rain eases to 1.92 mm/day, air temperatures rise to 13.5C and water holds at 14.4C. Expect powerful, well-ordered groundswell with occasional late-winter XXL days, but be ready to work around onshore wind. A few days of S or SSP wind can still produce clean, hollow sandbar perfection.
Average Spot conditions at Foz do Arelho in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Foz do Arelho 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 Foz do Arelho for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Foz do Arelho 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 Foz do Arelho.