Conditions at Salgueiros in September
September: First Signs of Autumn Energy
September is a bridge month. Average swell nudges back up to 3.5-4ft (1.1m) and the period lengthens to 10.4s, a promising sign. The wave direction remains favorable - WNW at 42%, NW at 39%, W at 12% - and the first strong Atlantic lows of autumn start to send more organized groundswell toward Portugal.
Wind quality also improves, with ideal offshore conditions reaching 28%. The nortada is still present (NNW 31%) but less relentless, and there are increasing windows with offshore/eastern flow. Water temp sits at 16.8°C, air averages 19.2°C. Surfable days become more frequent, and the season's first solid NW swell can fire Salgueiros.
Average Spot conditions at Salgueiros in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Salgueiros 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 Salgueiros for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Salgueiros 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 Salgueiros.