Conditions at La Sud in September
September: The Atlantic Starts to Wake Up
September is the transition month when La Sud begins to shake off the summer cobwebs. Average swell height climbs to 3-4ft (1.1m), period lifts to 10.6 seconds, and ideal offshore wind reaches 27%. The direction remains golden, with NW at 53.8% and WNW at 33.3%, and the distribution shows a steady increase in 1-1.5m and 1.5-2m swells - a far cry from the summer's ankle-biters. Water temperature is still warm at 20.8°C, air averages 18.9°C, and precipitation is moderate. September can deliver excellent warm-water waves when the first proper North Atlantic lows send long-period WNW swell in behind a fresh easterly wind.
Average Spot conditions at La Sud in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at La Sud 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 Sud for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at La Sud 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 Sud.