Conditions at Meia Praia in September
September: The Autumn Awakening
September is a transition month, and one of the more promising ones. Average swell height is still small at 2-3ft (0.6-0.9m), but the average period jumps back to 10.3s - a sign that the ocean is regaining its pulse. The swell rose still favors NW (40%) and WNW (30%), but the first S/SW/WSW pulses begin to appear, and the ideal wind percentage is a healthy 38%.
Water temperature matches August at 19.6°C, air averages 21.0°C, and rainfall remains low at 0.75mm/day. NNW winds (34%) and NW (19%) still dominate, but they are often lighter, allowing cleaner surfaces on the south-facing beach. If an early autumn depression tracks southwest of Portugal, Meia Praia can suddenly offer waist-to-shoulder-high, glassy waves while the water is still warm. It is one of the classic sleeper months for a reason.
Average Spot conditions at Meia Praia in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Meia Praia 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 Meia Praia for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Meia Praia 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 Meia Praia.