Conditions at Vale Figueiras in September
September: The Autumn Transition Begins
September is the turning point. The average swell height climbs slightly to 1.5m (5ft), and the average period jumps to 10.4s, pushing the surf back into the powerful long-period category. The swell window is still dominated by NW (47.1%), with NNW (25.5%) and WNW (14.3%) filling in the background, so when a low-pressure system develops in the North Atlantic, Vale Figueiras immediately responds. Ideal wind improves to 18%, although NNW wind still blows 36.4% of the time and NW 14.6%, meaning you need to wait for a favorable offshore window or pre-dawn glass. Water temperatures are at their warmest of the year at 19.1°C, air temps average 21.0°C, and rainfall starts to creep back up to 0.75 mm/day. September offers the first real taste of winter on the horizon.
Average Spot conditions at Vale Figueiras in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Vale Figueiras 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 Vale Figueiras for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Vale Figueiras 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 Vale Figueiras.