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Conditions at Newgale in September
September: The Atlantic Reawakening
September is the turning point. Average swell height climbs back to 3ft (1.0m), period improves to 7.2s, and the first genuine autumn low pressure systems start to inject longer-period energy into the North Atlantic. The swell window remains westerly and favorable, with WSW at 30.2 percent, SW at 18.0 percent and W at 10.4 percent, and there is a noticeable increase in the 1-1.5m and 1.5-2m classes compared to summer. The surf is still inconsistent, but the trend is upward. Wind conditions remain tricky: ideal offshore flow is only 7 percent, and onshore SSW-W winds blow around 38 percent. Water temperature stays warm at 16.2°C while air temps cool to 14.4°C and precipitation rises to 3.11 mm/day, making September one of the most comfortable months to be in the water. By the first strong frontal passage of autumn, Newgale can begin to show its true potential again.
Average Spot conditions at Newgale in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Newgale 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 Newgale for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Newgale 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 Newgale.