Conditions at Praia do Norte in September
September: First Signs of Life
September is the shoulder month that gives surfers hope. The average swell height rises slightly to 1.5m (5ft) and the average period lengthens to 10.5 seconds, signalling that the ocean is beginning to wake up. The dominant swell direction is still NW at 43.6%, with WNW at 22.7% and NNW at 20.6%, but the increasing period and occasional early-autumn lows bring back a more organised swell structure. When the first real long-period swell of the season arrives, Praia do Norte can suddenly turn on.
Winds are still dominated by the NNW summer pattern at 41.3%, but ideal surfing wind improves to 26% of the time. Water temperature remains warm at 18.5°C and air temperatures hold at 19.3°C, making September one of the most comfortable months to be in the water. It's a transition month with growing potential, especially for those willing to watch the charts closely.
Average Spot conditions at Praia do Norte in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Praia do Norte 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 do Norte for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Praia do Norte 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 do Norte.