Conditions at Gaztetape in September
September: The Autumn Awakening
September is when Gaztetape begins to stir from its summer slumber. Average swell height rises to 1.3m (4ft) and the period extends to 10.4s, signaling the return of more organized groundswell. The swell rose is still NW-dominant (54%), with WNW at 21% and NNW at 15%. Importantly, the distribution shows a healthy spread into the 1-2m (3-6ft) range, and the first signs of long-period energy appear. Ideal wind frequency jumps back to 32%, with southerly offshores fighting the lingering summer sea breeze. Early season swells can be clean and punchy, especially with the water still warm at 20.9°C.
Air temps remain pleasant at 19.5°C, with rainfall increasing to 2.33 mm/day.
Average Spot conditions at Gaztetape in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Gaztetape 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 Gaztetape for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Gaztetape 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 Gaztetape.