Conditions at Byberg in September
September: The Autumn Turnaround
September is a true turning point for Byberg. The average swell height climbs to 3ft (1.0m), the period lengthens to 7.1s, and the North Atlantic starts to generate real swell again. NW (16.3%), W (13.8%) and WNW (13.8%) dominate, and as the month progresses, those W/NW swells arrive with noticeably more period and push.
Wind conditions become more promising as well. The E/ESE/SE/SSE quadrant makes up 29.8% of observations and ideal wind reaches 9%, while NNW winds drop to 19.6% and NW to 7.7%. Water is still warm at 15.1°C and air averages 12.7°C, making September one of the most comfortable months to surf. When a low pressure system tracks south of Iceland and the winds turn offshore, Byberg can offer clean, rippable 3-5ft (0.9-1.5m) peaks with no hard winter frost.
Average Spot conditions at Byberg in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Byberg 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 Byberg for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Byberg 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 Byberg.