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The Wall - surf spot statistics
The Wall seasonal overview
Best Surf Season (October - March)
The North Atlantic pumps out consistent, powerful swell trains from October through March, driving average wave heights well above 2.4m and often exceeding 2.8m. During these months, offshore winds from the NE and ENE blow around 40-56% of the time, creating clean, groomed faces on the SW to W swell window. Long-period groundswells (10-14s average) dominate, and when a strong low-pressure system stalls off the coast, we see days of firing, hollow waves. This is prime time for The Wall, with the swell window fully exposed to the winter storm track.
Fair Surf Season (April & September)
April and September serve as transitional windows. April still holds an average swell height of 2.2m and 52% optimal wind, with SW-WSW swells packing a punch. September sees a slight uptick from summer lows with 1.9m average and a mix of lingering S/SSW swells. However, wind consistency drops below 50%, and periodic onshore flows can chop up the lineup. These months offer good sessions between fronts, but require timing.
Low Surf Season (May - August)
From May through August, the North Atlantic storm track retreats northward, and the average swell height plunges to 1.3-1.7m. Periods hover around 10 seconds, yielding weaker, less organized swell. The wind is ideal only 26-40% of the time, with frequent afternoon sea breezes from the W and WNW (onshore) ruining conditions. Small summer swells from the S and SW do arrive, but they are often short-period and fat. These months are best for fun-sized waves on a longboard when the rare glassy morning aligns.
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Conditions at The Wall in September
September: Early Season Stirrings
September shows the first signs of autumn recovery with an average swell of 1.9m and 9.9s period. The swell direction mix includes WSW (29.0%) and SW (25.3%), but also a notable increase in S (5.7%) and SSW (10.8%) swells. Wave heights begin to climb back into the 1-2m range. Wind ideal improves to 35%, but onshore S and SSE winds (combined 20%) still limit clean conditions. Offshore ENE and NE winds (8.0% combined) are making a comeback. Expect inconsistent but occasionally fun, playful waves.
Average Spot conditions at The Wall in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at The Wall 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 The Wall for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at The Wall 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 The Wall.