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Conditions at Prainha in August
August: Bigger Pulses, Waning Windows
August is still a good month, but the wind windows start to narrow. The average swell height is 1.7m (5-6ft) and the average period is 9.2s, so the ocean remains active. East-northeast swell becomes more dominant at 18.7%, with east at 14.8%, south-southeast at 12.4%, southeast at 12.8% and south at 13.3%. There are some significant pulses in the 2-2.5m (6.5-8ft) range, and the beach can absolutely fire when conditions align. However, the ideal wind frequency drops to 43% as the northeast trades strengthen through the month. Water temperature stays cold at 16.2°C and air temperatures average 14.7°C. Look for the first few days after a strong cold front, when southwest and west winds swing through the offshore quadrant.
Average Spot conditions at Prainha in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Prainha 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 Prainha for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Prainha 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 Prainha.