Conditions at Cadiz in September
September: The Atlantic Stirs Again
September brings the first real hope of autumn. The average swell height is still small at 3ft (0.9m), but the period lengthens to 8.6 seconds - a clear sign that the ocean is slowly waking up. WNW remains dominant at 44.9 per cent, with W at 19.9 per cent and a growing WSW component as Atlantic lows start to probe lower latitudes. Most waves are still in the 2-3ft (0.5-1m) range, but there are enough 3-5ft (1-1.5m) pulses to make the most exposed west-facing beaches worth checking.
Wind direction begins to shift back toward the autumn pattern. ESE is still the most common wind at 16.7 per cent, while W drops to 12.2 per cent and onshore flow weakens slightly. Ideal surf windows improve to 26 per cent, and with water temp still warm at 21.2°C, air at 22.7°C and rainfall at 0.83mm/day, September can offer some classic warm-water surf sessions in the Gulf of Cadiz.
Average Spot conditions at Cadiz in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Cadiz 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 Cadiz for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cadiz 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 Cadiz.