Conditions at Fonte da Telha in September
September: The Atlantic Wakes Up
September is where the North Atlantic starts to wake up from its summer slumber. The average swell height is still modest at 1.1m (3-4ft), but the period lengthens to 10.5s and the number of active storm swells begins to increase. NW (50.4%) and WNW (31.6%) remain the dominant swell directions, while pure W contributes 8.9% and WSW/SW begin to creep back into the picture. Ideal offshore wind improves to 21% of the time, although NNW (36.4%) and NW (14.7%) winds still dominate the afternoons. This is a classic early-autumn transition month: the first proper groundswell of the season can coincide with warm water, light NE morning breeze, and plenty of autumn sunshine. As the month progresses, both size and consistency build. Water temperature is still pleasant at 18.7°C, making September one of the most comfortable months to score quality waves.
Average Spot conditions at Fonte da Telha in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Fonte da Telha 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 Fonte da Telha for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Fonte da Telha 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 Fonte da Telha.