Conditions at Lagoa de Albufeira in September
September: The First Swells of a New Season
September is a month of change. The average swell height is still modest at 1.1m (3-4ft), but the average period jumps back to 10.5s and the direction mix remains excellent: NW 50.4%, WNW 31.6% and W 8.9%. The first North Atlantic lows of autumn start to send longer-period swells toward Portugal, and although the heights are not yet winter-sized, the quality of the surf is noticeably better than July and August. A solid head-high NW swell is now a realistic possibility, especially later in the month.
Wind still needs to be watched. NNW is the most common direction at 36.4%, and NW/WNW flow adds another 23%, so many days will be bumpy. However, ideal wind frequency climbs to 14%, and the E/SE offshore window begins to appear more often under weakening thermal pressure. With average air temperatures of 19.9°C (min 14.1°C, max 31.2°C), 0.89 mm/day of rain and water temperatures at 18.7°C, September offers warm sessions and the first real reason to start checking the forecast for groundswell.
Average Spot conditions at Lagoa de Albufeira in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Lagoa de Albufeira 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 Lagoa de Albufeira for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Lagoa de Albufeira 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 Lagoa de Albufeira.