Conditions at Praia Grande in July
July: Deep Summer Flatline
July is the heart of the low season. The average wave height bottoms out at 4.5ft (1.4m) and the period at 8.5 seconds - the lowest of the year. The swell window is extremely north, with NNW at 54.2 percent, NW at 33.0 percent, and WNW at 9.2 percent. This is mostly short-period, locally generated NNW windswell rather than true Atlantic groundswell, and Praia Grande's west-northwest exposure means it catches what little northern energy exists. The wind is brutal: NNW flow accounts for 65.2 percent of all observations, including more than half of the wind speeds in the 20-40kph (13-25mph) range. Ideal offshore flow drops to just 2 percent, making clean conditions almost nonexistent. When it is small and bumpy, the sandbars can still be fun for a longboard on a rare glassy dawn, but this is not a month to plan a surf trip around. Air temperatures average 20.2°C (min 14.0°C, max 33.9°C), precipitation is just 0.15 mm/day, and water temperature sits at 17.9°C.
Average Spot conditions at Praia Grande in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Praia Grande 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 Praia Grande for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Praia Grande 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 Praia Grande.