Conditions at Zurriola in August
August: Warmest Water, Coolest Swells
August is nearly a mirror of July: average swell at 1.0m (3ft), period 9.2s, and the swell rose again locked on the NW quadrant (64.9 percent NW, 15.9 WNW, 16.4 NNW). It is the warmest month of the year, with sea temperature reaching its annual peak of 22.6°C and air temps averaging 20.8°C - wetsuit-free holiday conditions. Yet the wave quality is still held hostage by the summer wind pattern. NNW (17.9), NW (12.8) and WNW (11.5) dominate, and onshore winds from the north and northwest account for nearly half of all observations. Ideal wind conditions tick up only marginally to 21 percent. However, a subtle shift is brewing: the first hints of autumn instability appear as Atlantic storm activity edges southward toward the Bay. A long-period swell sneaking through in mid to late August - especially when coupled with the first southern wind event after months of northern flow - can turn this month into an unexpected gift. Watch the charts and be ready to pounce when the pattern breaks.
Average Spot conditions at Zurriola in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Zurriola 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 Zurriola for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Zurriola 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 Zurriola.