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Conditions at Antonio's in September
September: The First Breath of Autumn
September is the bridge between summer slump and winter gold. Average swell height remains modest at 3-4ft (0.9-1.2m), but the period starts to climb back to 9.1s, and the distribution becomes more interesting: NE (34%), ENE (34%), and NNE (13%). True N and NNW energy is still scarce, yet the longer-period component makes the NE/NNE pulses much more meaningful than summer windswell. Ideal offshore wind sits at a solid 55%, giving a high chance of clean surfaces. Water temp is 29.3°C, air 28.5°C, and precipitation is near its annual peak at 4.9mm/day, so there is plenty of tropical moisture in the air. With both hurricane season and early extratropical lows in play, September can throw a surprise party-be ready to drop plans when a storm track points any N/NNW energy toward Antonio's.
Average Spot conditions at Antonio's in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Antonio's 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 Antonio's for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Antonio's 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 Antonio's.