Conditions at Foz do Arelho in April
April: Quality Remains, but the Wind Keeps Score
April is the classic shoulder-season month on the Portuguese coast. Average swell height softens to 7ft (2.1m), period drops to 11.2s, and the swell window remains dominated by NW at 25.1 percent, NNW at 19.8 percent and WNW at 19.7 percent. There are still plenty of surfable waves, but ideal offshore wind falls to 16 percent as a strong N to NNW flow takes over the wind rose. NNW alone accounts for over 27 percent of April winds, often with fresh to strong speeds that chop up otherwise solid NW swell. Water warms to 15.3C, air averages 14.5C and showers stay frequent at 2.08 mm/day. The smart play is to target early morning windows, S to SE breezes ahead of fronts, or lighter NW wind days when the swell still has enough period to hold its shape.
Average Spot conditions at Foz do Arelho in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Foz do Arelho during April. 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 April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Foz do Arelho for April. 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.