Conditions at Louro in September
September: The Atlantic Begins to Wake
September is the bridge between summer slop and winter power. Average swell height claws back to 3ft (1.0m) and the period lengthens to 8.8s, adding a little more push to the waves. The swell still comes mainly from WNW (32.5%), NW (23.7%) and W (14.9%), but the preferred S-SSW-SW-WSW window climbs to about 10.1%. Offshore N/NE winds blow 42% of the time, with NNE (17.3%) and NE (16%) keeping the beach clean. As the first autumn cold fronts dip out of the Atlantic, there are increasing moments when a solid WSW swell lines up with early-morning offshore wind. Water temperature is still warm at 16.3°C, air temps average 17.8°C, and rain begins to pick up to 2.26 mm/day. September is all about being ready for the first swell of the season.
Average Spot conditions at Louro in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Louro 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 Louro for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Louro 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 Louro.