Conditions at Vila Praia de Ancora in September
September: The Autumn Switch Begins
September is where the year starts to wake up. Average swell height climbs slightly to 5ft (1.6m), but more importantly the average period lengthens to 10.5s, signaling the first true groundswell pulses of autumn. The direction mix is strongly favorable: NW 34%, WNW 23%, NNW 22%, and W 6%, with a growing WSW component. A much higher percentage of the angle is now hitting the west-facing beach optimally, and those 5-8ft (1.5-2.5m) waves become more common again.
Wind quality also improves, with ideal wind at 40%. NNW is still the most frequent wind at 23%, but NNE 10% and increasing east/southeast winds create more morning offshore opportunities. Air temperatures average 18.8°C, water temperature is 16.5°C, and rainfall is starting to increase at 2.21 mm/day. September is a true transition month: the summer crowds thin, the Azores High starts to break down, and the chance of scoring well overhead W-NW groundswell without brutal wind goes up significantly.
Average Spot conditions at Vila Praia de Ancora in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Vila Praia de Ancora 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 Vila Praia de Ancora for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Vila Praia de Ancora 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 Vila Praia de Ancora.