Conditions at Ribeira das Janelas in September
September: First Signs of Atlantic Fire
September is where the surf season starts to wake back up. Average swells have lifted to 5-6ft (1.5-1.8m) and periods climb back into the 10.5s range. The NNW direction dominates with a huge 40.4% share, while N and NNE also contribute strong, direct energy for this NE-facing beach. The wind also relents a little: ideal S/SSW/SW/WSW conditions rise to 17%, and the strongest NNE winds become less frequent. Water temperatures are still summer-warm at 23.7°C, and air temps average 22.6°C, so a summer suit still works. September is a transition month in the best way possible: the ocean has more punch, and the winds are more likely to cooperate than they were just a few weeks earlier.
Average Spot conditions at Ribeira das Janelas in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Ribeira das Janelas 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 Ribeira das Janelas for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ribeira das Janelas 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 Ribeira das Janelas.