Conditions at Santa Comba in September
September: Autumn's First Roar
September is a crossroads month. The summer heat is fading and the North Atlantic begins to show signs of life. Average swell height climbs back to 1.7m (5.6ft) and average period lengthens to 10.4s, while ideal wind improves to 25%. The swell distribution is still NW-heavy, with NW (27.3%), WNW (20.3%), and NNW (16.7%) making up over 64% of the observations. The wind scene starts to shift: NE (14.5%) and ENE (15.3%) remain common, but increased S/SSW/SW activity means more offshore sessions. The first autumn cold fronts sweep across the region, often preceded by south to southwest winds that groom long-period NW swell into clean, glassy waves. Water temp is still warm at 17.2C, air temp averages 17.5C, and precipitation rises slightly to 1.99mm/day. September is an excellent shoulder month with plenty of fun, clean surf.
Average Spot conditions at Santa Comba in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Santa Comba 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 Santa Comba for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Santa Comba 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 Santa Comba.