Tres Palmas seasonal overview
Best Surf Season (October - March)
The North Atlantic roars to life as deep winter lows churn across the basin, generating the largest and longest-period swell of the year. While the dominant swell direction at Tres Palmas remains stubbornly from the north and east during these months, the rare south-to-west swells (SSW, SW, WSW, W) that this SW-facing spot craves become marginally more frequent. When a strong extratropical storm drifts far enough south or interacts with a cutoff low, we see pulses of long-period south swell wrapping into the exposed reefs. Combine that with the ever-present offshore winds from the north (NNO, NO, ONO, O) that grace the area up to 64% of the time, and the result is the most consistent chance for truly world-class barrels. Average heights of 1.5-1.6m and periods of 10s provide a solid base, but the real magic happens when a textbook 15s+ south swell aligns with a crisp northerly breeze—then Tres Palmas transforms into one of the heaviest waves on the planet.
Fair Surf Season (April - September)
The trade-wind machine dominates the summer half of the year, delivering incredible consistency in offshore winds—peaking at an astonishing 88% in June. However, the swell is largely a poor fit for Tres Palmas. Waves are generated by easterly trades, producing short-period, low-energy windswell from the ENE and E that rarely top 1m. These conditions are rideable for longboards and grovelers, but the lack of fetch from the south means the wave quality is generally weak and mushy. Still, when a rare tropical disturbance or hurricane spins up in the Caribbean, it can send a pulse of south swell that briefly rewrites the script. Those fleeting windows, paired with glassy offshore trade winds, offer the occasional reminder of what Tres Palmas can do.
Low Surf Season (June - August)
The peak of summer is the doldrums for Tres Palmas. With average swell heights barely reaching 1m and periods under 8s, the energy is almost entirely from the east-northeast—completely opposite of the south-to-west swells the spot demands. The ocean turns to glass with perfect offshore winds, but that only highlights the lack of real swell reaching the coast. This is the time for flat spells, micro-sessions, and long waits. Only the most desperate or patient surfer paddles out, knowing that the next proper swell likely won't arrive until the autumn transition.
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Conditions at Tres Palmas in September
September: Early Season Hope
September marks a subtle shift. Average swell edges up to 1.1m at 9.1s, and there is a very slight uptick in south swell—0.2% from SSW and 0.1% from SW. The dominant direction remains from the NE and ENE (34% and 34%). Ideal wind is 78%, with ENE and E leading. The longer period (9.1s) indicates more powerful energy, and the beginning of autumn increases the chances of a proper south swell. When a strong Atlantic storm tracks far enough south, it can send a heavy NW swell that refracts into the coast, but the true south swell windows open slowly. A month of transition with building potential.
Average Spot conditions at Tres Palmas in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Tres Palmas 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 Tres Palmas for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Tres Palmas 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 Tres Palmas.
