Playa Avellanes seasonal overview
Best Surf Season (December - April)
During the dry season, the North Atlantic Subtropical High strengthens, driving reliable offshore trade winds from the NE and ENE. Combined with consistent, long-period groundswells generated by Southern Hemisphere storms, this window delivers clean, well-shaped waves at Playa Avellanes. Average wave heights hover around 1.3-1.5m, periods range from 11.5 to 14.1 seconds, and wind ideal percentages often top 60%. This is when the spot truly shines, offering fun, rippable surf with occasional pumping sessions.
Fair Surf Season (May - August)
As the ITCZ shifts north, trade winds weaken and become more variable, but the swell machine keeps churning. Most energy arrives from the SSW, which wraps into the beach to produce consistent, powerful waves. Average heights climb to 1.5m with periods around 13-14 seconds. Morning offshore flows remain frequent, especially in July when wind ideal percentage hits 79%. Expect plenty of surfable days, though afternoon sea breezes can degrade conditions.
Low Surf Season (September - November)
The transition between seasons brings a breakdown in the trade wind regime. September and October see a drop in ideal wind frequency to 50-55%, as the ITCZ lingers and allows more onshore flow from the SW and W. Swell energy remains moderate, but the quality is often compromised by bumpy seas and occasional stormy intervals. November marks a gradual return to better conditions as the trades re-establish, hinting at the upcoming peak season.
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Conditions at Playa Avellanes in September
September: Windy Transition
September sees a shift: average height 1.5m, period 13.1s, but wind ideal drops to 50%. Swell remains SSW (66.7%) and SW (28.8%), but wind patterns become more mixed. Light winds from the S and SW increase, introducing occasional onshore flow. The trades weaken, and the ITCZ influence brings more variable conditions. While there are still plenty of clean windows, especially in the early morning, the overall consistency takes a hit. Look for push days from Southern Hemisphere storms to offset the bumpy spells.
Average Spot conditions at Playa Avellanes in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Playa Avellanes 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 Playa Avellanes for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Playa Avellanes 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 Playa Avellanes.
