Conditions at Sagres in September
September: The First Real Groundswell Returns
September is the bridge back to quality. Average swell rises to 5ft (1.5m) and period jumps to 10.4s-already in the powerful long-period class. The wave rose is still NW-dominated (NW 47.1%, NNW 25.5%, WNW 14.3%), but the swell is more organized and capable. Direct SE/SSE/S/SSW swell remains tiny at about 0.2%, yet the long-period NW storm swell wraps nicely into the SSE-facing beach.
September has the best wind statistics of the year: 36% ideal for surfing. NNW wind is 46.0%, but there is also a healthier mix of N (5.2%), NNE (3.9%), and NW (12.2%), with less excessive 40-50kph pressure. Water temp peaks at 19.3°C, air averages 21.0°C (14.9-32.2°C), and rain is still low at 0.75mm/day. This is one of the finest months to be in the water at Sagres.
Average Spot conditions at Sagres in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Sagres 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 Sagres for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Sagres 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 Sagres.