Conditions at 7 - 11 in September
September: The Autumnal Reawakening
September is where 7-11 starts shaking off the summer sleep. Average surf height rises back to 1m (3.3ft) and the average period jumps to 8.3s -- the biggest jump of any month. E and ESE swell are dominant, with a solid chunk of 1-1.5m (3-5ft) and even some 1.5-2.5m (5-8ft) energy on the table. This is also the peak of the Atlantic hurricane season, so long-period groundswell from passing storms becomes a real and repeatable possibility.
Wind quality is typical of a transition month: ideal conditions occur about 41% of the time, with a mix of clean morning offshores and afternoon southwest seabreezes. Water temperatures are still warm at 22.2°C, while air temps drop to a pleasant 20.7°C. September is arguably the best balance of size, period and warmth that 7-11 sees all year, especially when a hurricane or remnant low tracks far enough offshore to send clean ESE/SE swell without total onshore chaos.
Average Spot conditions at 7 - 11 in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at 7 - 11 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 7 - 11 for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at 7 - 11 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 7 - 11.