Conditions at State's Avenue in September
September: Autumn Ignition and Long-Period Swell
September is a turning point at State's Avenue. The average swell height rises to 4ft (1.2m) and, more importantly, the average period jumps to 8.4s - the highest of the year. The swell rose becomes well-rounded: E and ESE each deliver roughly 18% of observations, with SE at 17% and SSE at 11.7%. For a beach facing SSE, this translates into more organized, powerful waves than anything in the previous three months.
Wind conditions improve too. The ideal-wind mark is 28%, and the growing frequency of cold fronts brings more NW and NNW offshore flow. Water temperature is still pleasant at 22.3°C and air averages 20.7°C, so it is one of the most comfortable surf months of the year. Add tropical moisture to the mix, and September can easily serve up the first legitimately pumping swell of the season.
Average Spot conditions at State's Avenue in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at State's Avenue 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 State's Avenue for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at State's Avenue 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 State's Avenue.