Conditions at La Lancha in September
September: Peak Cyclone Energy Meets Peak Wind Unreliability
September is the climax of the Eastern Pacific hurricane season and produces the highest number of bigger swells in the annual cycle. The average swell height is 3.5ft (1.1m), the period is 13.0s, and the distribution shows meaningful 5-8ft (1.5-2.5m) energy: SSW contributes 2.9%, SW 3.3% and WSW 1.2%. Swell direction is ideal - SW 60%, SSW 24%, WSW 14% - so when La Lancha gets a September pulse, it can be heavy, lined-up and firing. These are true tropical groundswells with lots of energy.
The catch is wind and weather. Ideal offshore flow falls to the annual minimum of 63%, and the wind rose becomes very messy. Rain arrives relentlessly, averaging 11.26mm/day, while air temperatures sit at 27.5°C and the sea is a humid 30.4°C. Tropical storms and hurricanes often bring their own locally destructive winds, shutting the beach down even as the swell peaks. September is a roll-of-the-dice month: epic if a cyclone sends clean SW swell with offshore winds, but more often too rainy, windy or lumpy to take full advantage.
Average Spot conditions at La Lancha in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at La Lancha 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 La Lancha for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at La Lancha 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 La Lancha.