Conditions at Foz do Arelho in July
July: The Great Summer Lull
July is the absolute bottom of the surf curve. Average wave size is just 5ft (1.5m), average period 8.6s, and a large majority of the wave resource arrives from the NNW at 52.4 percent, with another 31.7 percent from the NW. These are not long-period groundswells; they are short, locally groomed windswells, and the persistent N to NNW flow (57.8 percent) makes them messy. Ideal offshore conditions occur only 4 percent of the time, the lowest of the year. When a rare S or E wind sets up, Foz offers soft waist-high peaks that are best suited to high-volume boards. With air around 19.4C, water at 17.6C and nearly zero rain at 0.20 mm/day, it is a beautiful beach day but a poor surf day. Patience is not just a virtue in July; it is a requirement.
Average Spot conditions at Foz do Arelho in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Foz do Arelho during July. 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 July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Foz do Arelho for July. 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.