Conditions at Praia das Macas in September
September: Autumn's First Pulse
September is the hinge between summer flatness and winter power. Average swell height modestly rises to 1.6m (5.2ft) and period lengthens to 10.5s, restoring some punch to the waves. Swell direction remains favorable, with NW (36.0%), NNW (34.4%), WNW (15.4%) and W (4.4%) all contributing. This is the first month since the summer lull where quality groundswell becomes plausible, especially in the second half of the month.
Wind still limits wave quality, with ideal surfing wind at 11%. The NNW wind (42.2%) and N wind (11.5%) are still powerful, but their intensity starts to ease compared to July and August. Keep an eye out for SW (4.1%), WSW (3.3%) or SSW (3.3%) days, which can carve out sparkling sessions. Water temperature peaks at 18.6°C, air averages 19.8°C (12.2-32.1°C), and rainfall creeps up to 0.95mm/day. September is about timing the first autumn swells with the last warm days.
Average Spot conditions at Praia das Macas in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Praia das Macas 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 Praia das Macas for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Praia das Macas 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 Praia das Macas.