Conditions at Luz in September
September: First Signs of Life
September is the pick of the transition months, as the ocean begins to stir. Average swell height is 5ft (1.5m) and period stretches back to 10.4s - no longer pure windswell. The wave rose is still NW-heavy (47.1%) with a strong NNW component (25.5%), and while the optimal SE/S window only accounts for 0.5%, the initial autumn storms are closer and can deliver a touch of S angle. The standout feature is wind: the ideal wind score jumps to a year-high 46%, with the offshore N/NNW quadrant at 59.9%. This means when any southern-angled swell arrives, the conditions are usually glassy and well groomed. Water is warm at 19.3°C, air averages 21.0°C, and rain remains minimal at 0.75 mm/day. It's the best chance for a fun, quality session on a board that isn't strictly a longboard.
Average Spot conditions at Luz in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Luz 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 Luz for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Luz 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 Luz.