Conditions at Berria in September
September: First Signs of Autumn Magic
September is when the Atlantic begins to stir. Average swell height rises to 3.9ft (1.2m), average period stretches to 10.4s, and ideal wind chances increase to 36%. The swell direction is still summer-like - NW 53.8%, NNW 21.9%, and WNW 10.2% - but the size distribution shifts upward: NW now has 20.2% in the 3-5ft (1-1.5m) range, 10.9% in 5-6ft (1.5-2m), and 4.1% in 6-8ft (2-2.5m). That means more consistent head-high plus windows. Wind remains mixed, with WNW (12.0%) and W (10.6%) still prominent, but southerly offshore tendencies are slowly increasing. Water temp is still warm at 20.3°C, air averages 19.1°C, and rainfall begins to increase to 1.96 mm/day. Autumn groundswells are brewing - this is the moment dawn patrol pays off again.
Average Spot conditions at Berria in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Berria 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 Berria for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Berria 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 Berria.