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Conditions at Juno Pier in September
September: Hurricane Season Wildcard
September is the transition month with the most upside. Average swell height jumps back to 3.3ft (1.0m) and the period improves to 8.2s, marking a return of real groundswell. The swell rose is a monster: NE at 32%, ENE at 30%, and E at 17%-those three alone account for nearly 80% of all wave energy, with ESE adding another 7%. This is prime tropical-storm and early-autumn cold-front season. However, the wind rose still favors ENE/E/ESE/SE, so onshore flow is relentless and ideal offshore wind sits at just 19%. The best conditions arrive when a hurricane passes offshore and drags in a western wind, or when the first cold front of autumn sweeps through and clears the coast. On those days, Juno Pier can go from quiet to firing in a matter of hours. Water temp is still 29°C (85°F).
Average Spot conditions at Juno Pier in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Juno Pier 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 Juno Pier for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Juno Pier 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 Juno Pier.