Conditions at Preciosa in September
September: The Turning Point
September is the bridge from summer lull toward autumn action. Average swell height remains small at 1.3m (4.3ft), but the average period makes a clear jump up to 8.8s, and the direction mix rotates back to ENE (42.3 percent), E (30.1 percent), NE (16.6 percent) and NNE (5.6 percent). This is the first month since spring where the N/NE component becomes meaningful again. The winds are also at their most cooperative of the year, with ideal conditions 50 percent of the time - the trade wind machine eases and S/SSW/SW offshore episodes are more frequent. September is prime hurricane season, so tropical systems in the Atlantic and Caribbean can deliver rare, powerful groundswell with long-period energy that completely overrides the background lull. Air temperature averages 27.9°C (23.5-35.2°C), water temperature peaks at 28.9°C, and rainfall is 2.07mm/day. Watch the hurricane maps.
Average Spot conditions at Preciosa in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Preciosa 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 Preciosa for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Preciosa 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 Preciosa.