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Conditions at Herradurra in September
September: Late Winter Last Stand
September brings the last big push of winter before spring begins to reassert itself. Ideal wind sits at 75 percent, with the same strong S flow pattern: S winds make up 82.0 percent and 20-30kph winds another 21.1 percent. It is still an offshore pattern, but not a delicate one, and the cleanest waves will come when the trade wind relents.
Swell averages 5ft (1.5m) at a solid 13.1s period. SSW swell is as dominant as almost any time of year at 88.7 percent, with S and SW adding the remainder. The 5-7ft (1.5-2m) range accounts for 40.1 percent of the spectrum, while 2-2.5m (6-8ft) waves remain present at 6.2 percent. Water temperature bottoms out at 16.2°C, the coldest of the year, while air temperatures nudge up to 17.3°C. September is for those who want winter power before the seasonal transition takes hold.
Average Spot conditions at Herradurra in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Herradurra 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 Herradurra for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Herradurra 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 Herradurra.