Conditions at Fence in September
September: Spring Invasion, But the Swell Engine Isn't Done
September is a transition month with a serious winter hangover. The average swell is still a formidable 7-8ft (2.3m) and the period remains at 11.7s, so far from flat. SSW (21.2%) and SW (20.1%) are the dominant directions, with S at 10.1%; much of this swell is still travelling with real power. The wind pattern starts to shift back toward a more E/ENE thermal flow, but WSW is the strongest wind direction at 20.3%, providing useful offshore stretches inside frontal passages. Air temperatures begin to recover to 16.9°C and water sits at 17.6°C. Ideal wind is only 22%, yet the quality of the underlying swell means even a short clean window can deliver excellent waves at Fence.
Average Spot conditions at Fence in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Fence 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 Fence for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Fence 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 Fence.