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Conditions at Conchalio in September
September: A Wilder Mix of Tropical Energy and Stronger Swell
September is the peak of the tropical wet season and one of the most dynamic months for Conchalio. The average swell height is 1.4m (4.5ft) with a 13.0s period, but the direction spread broadens: SSW remains dominant at 73%, SW jumps to 16%, and S adds 9%. The stronger SW component brings a more westerly, open-ocean feel and often arrives with raw power; nearly 10% of swells are in the 1.5-2.5m (5-8ft) range from this direction alone. Ideal wind is 52%, with NE and ENE flow the best offshore options, while W and WSW winds become more common -- over 15% combined -- and can put a cross-shore, textured bump on the lineup. Rainfall peaks around 8.14mm per day, and air and water temperatures ease slightly to 26.4°C and 29.9°C. Tropical cyclones and easterly waves can deliver sudden, heavy pulses, so keep an eye on the satellite imagery.
Average Spot conditions at Conchalio in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Conchalio 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 Conchalio for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Conchalio 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 Conchalio.