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Conditions at Penascal in September
September: Still Heavy, Still Windy
September marks the beginning of the slow transition toward summer, but Penascal is still in the thick of big winter surf. Average swell height remains at 1.9m (6.2ft), the period is 12.9s, and SSW dominates with 73.3% of all swell events. S swell peaks for the year at 18.6%, giving the southwest-facing beach a slightly more southerly, more open-ocean angle than the summer months. The wave heights are consistently powerful, with 52.4% in the 1.5-2m (5-6.5ft) range and 25.8% in the 2-2.5m (6.5-8ft) range. Yet the wind story has not changed: S (44.1%) and SSW (49.5%) account for 93.6% of observations, mostly 10-20kph, and there is still zero ideal offshore wind. Water temperature is the chilliest at 15.2°C, with air temperatures at 16.8°C. Bring the bigger board and enjoy the raw power when the tide and banks align.
Average Spot conditions at Penascal in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Penascal during September. 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 Penascal for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Penascal for September. 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 Penascal.