Conditions at Agua d'Alto in September
September: Autumn Warmup
September is when the North Atlantic starts waking up again. Average swell climbs to 1.7m (5.5ft), period extends to 10.4s, and the dominant height class shifts up into the 1.5-2m (5-6.5ft) range, with a good share of 2-2.5m (6.5-8ft) pulses. Direction is still mostly NNW (25.3%) and NW (15.1%), but the longer periods mean more of that energy actually rearranges itself on the SSW-facing beach; the rare SW-WSW pulses are worth chasing.
Ideal offshore wind settles at 40%, with NNE, NE and ENE all well represented. The ocean is still warm at 23.0°C, air temperatures average 22.3°C, and rain begins to creep back to 1.68 mm/day. It's a fantastic month to score solid, warm-water waves without the winter crowds or winter storms.
Average Spot conditions at Agua d'Alto in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Agua d'Alto 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 Agua d'Alto for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Agua d'Alto 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 Agua d'Alto.