Surf forecastStatisticsHistorical report

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 December

December: Winter Peak Arrives

December hits the highest average swell of the year at 3.0m with a solid 11.7s period. Swell directions are SW (8.9%), WSW (10.6%), and SSW (5.8%), with a notable proportion of swell over 2.5m (1.1% in SW, 1.0% in WSW). Wind is ideal 52% of the time, with strong ENE (13.2%) and E (12.2%) offshore flows. The combination of huge groundswell and favorable offshore winds creates epic, heavy conditions. This is the month to charge at The Wall, but respect the power – waves can be XL.

Average Spot conditions at The Wall in December

Swell history for December

0 - 0.5
0.5 - 1
1 - 1.5
1.5 - 2.0
2.0 - 2.5
> 2.5 m

Wind history for December

0 - 10
10 - 20
20 - 30
30 - 40
40 - 50
> 50 km/h

Swell quality

Analyze the groundswell consistency at The Wall during December. 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 December.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at The Wall for December. 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.

Swell with good wind

Swell with good wind by size