Conditions at Orrua in September
September: The Awakening
September is where the energy starts coming back to Orrua. The average swell height rises to 1.3m (4-5ft) and the period climbs back above 10 at 10.4s. The first autumn frontal lows begin to send longer-period pulses toward northern Spain, and the NW direction remains dominant at 53.5%, with WNW at 21% and NNW at 14.5%. Wind conditions also start to improve: ideal offshore wind reaches 33%, and S/SSW flow is back up to around 12%. The ocean is still warm from summer, with water temperature at 20.9°C and air at 19.5°C, while rain is still moderate at 2.33 mm/day. September is a great transition month - the crowds are fading, the water is warm, and the swell is slowly waking up again.
Average Spot conditions at Orrua in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Orrua 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 Orrua for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Orrua 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 Orrua.