Conditions at Agger in September
September: Autumn Comes Alive
September is when Agger starts to wake up. The average swell height climbs back to 5ft (1.5m), period lengthens to 6.6s, and the autumn storm track begins to feed more energy into the North Sea. Westerly to northwesterly swells dominate the rose, with optimal directions making up close to 47% of all readings. The offshore ENE-SE wind window is back up to 18%, and although west-northwest winds still blow frequently, they are less relentless than in summer. Water temperature remains warm at 16.1°C, air temps average 14.5°C, and the beaches are quieter. This is an excellent month for logging proper autumn waves before the heavy cold water returns.
Average Spot conditions at Agger in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Agger 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 Agger for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Agger 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 Agger.