Conditions at Strand in September
September: Spring Transition and XL Remnants
September is a mix of late-winter power and early-spring winds. Average swell is still a robust 8.5ft (2.6m), period 11.9s, with SW 18.1%, SSW 10.8%, WSW 9.6% and the gradual return of S/SSE swell. Clean wind windows slide to 39%, and the combined SE/SSE wind percentage rises to 27%, although NNW still contributes 15.0% of the more offshore-oriented flow. The upshot is that the biggest swells can still be world-class, but they are more exposed to cross-shore energy as the South Atlantic High intensifies. Water warms slightly to 15.2°C, air averages 13.4°C, and rain lowers to 1.94mm/day. Patience and careful tide timing are key.
Average Spot conditions at Strand in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Strand 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 Strand for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Strand 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 Strand.