Conditions at Ria Formosa in September
September: First Signs of Life
September is the gateway to the good season. Average size is still small at 2ft (0.6m), and the period at 8.6s is only average, but ideal winds improve to 16 percent and the first Atlantic lows begin flickering back toward the Portuguese coast. Swell direction is still mostly W (23.4 percent) and WNW (22.6 percent), but WSW (10.6 percent) and SW (4.6 percent) start to reappear in the mix. The ocean is warm at 19.8°C, air temps average 21.9°C and rainfall is still low at 0.75mm/day. An early autumn storm or a decaying tropical system can deliver a fun 3-5ft (0.9-1.5m) pulse with clean northerly winds, so it pays to stay alert.
Average Spot conditions at Ria Formosa in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Ria Formosa 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 Ria Formosa for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ria Formosa 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 Ria Formosa.