Conditions at Neva Bay in September
September: Autumn Awakens
September is the turning point. Average swell height jumps to 6.6ft (2.0m), and while the average period is still short at 9.9s, the directional profile is strong: WSW 27.8%, SW 25.8%, SSW 11.2%, with S 5.9%. More of the distribution sits in the 1.5-2.5m range, and the first strong low-pressure systems of the autumn season begin to organize over the Great Lakes. Ideal wind improves to 24%, with ESE and SE flow providing offshore potential but also some stronger, lumpy periods. Water temperature is still pleasant at 13.0°C (55°F), while rainfall increases to 9.13 mm/day on average. September is a month to keep an eye on the weather map - the first big lake swell of the season may be just a few days away.
Average Spot conditions at Neva Bay in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Neva Bay 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 Neva Bay for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Neva Bay 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 Neva Bay.