Conditions at Inatel in September
September: The Atlantic Starts to Stir
September is the turning point. The average swell height is still small at 2ft (0.6m), but the average period climbs back to 8.6s - a clear sign that the long-period energy is returning to the North Atlantic. The swell rose is still dominated by W and WNW, together around 46%, but the WSW and SW directions are beginning to contribute more, and the S/SW window becomes more viable as tropical and early-autumn systems drift north. It is not winter, but it is no longer summer.
The wind is ideal 17% of the time, with NNW leading at 24% and NW at 13%. Early autumn low pressures bring more variable winds, and the first proper frontal passages of the season can set up clean mornings at Inatel. Air temperatures average 21.9°C, precipitation starts to increase at 0.75 mm/day, and water temperature remains warm at 19.9°C. Watch this month for the first real swell of the new season.
Average Spot conditions at Inatel in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Inatel 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 Inatel for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Inatel 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 Inatel.