Conditions at Praia Grande in August
August: The First Hints of Autumn
August remains small, but the North Atlantic is no longer completely asleep. Average wave height still sits at 4.5ft (1.4m), while the period ticks up to 8.9 seconds. The swell distribution is led by NNW at 50.7 percent and NW at 35.1 percent, with WNW at 10.2 percent. There are a few more 2-2.5m waves showing in the NW and NNW sectors than in July, especially late in the month, as the first cold fronts begin to move south. Wind remains the main enemy: NNW flow accounts for 61.3 percent, NW at 9.4 percent, N at 9.3 percent, and ideal offshore wind only 4 percent. The sea breeze is powerful and regular, and the few clean windows usually happen before 10am. Water temperature is at its warmest of the season at 18.3°C, air averages 20.7°C (min 14.2°C, max 36.3°C), and precipitation is minimal at 0.25 mm/day. August is about tiny waves and warm water, though the closing days can suddenly reveal the first autumn swell.
Average Spot conditions at Praia Grande in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Praia Grande during August. 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 August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Praia Grande for August. 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.