La Setenta - surf spot statistics

Best Surf Season (November - February)

The heart of winter delivers the most consistent surf at La Setenta, driven by the North Atlantic storm track. November through February sees average swell heights hovering around 0.7m with periods reaching 6.1s, and ideal offshore wind conditions occur 20-23% of the time. While the trade wind belt still pumps easterly wind, the increased frequency of cold fronts sweeping down from the Gulf of Mexico can swing winds to the south, creating clean, offshore conditions. Swell from the N, NW and NNW quadrants peaks during this window, with NNW alone supplying up to 23% of all waves in January. Most of this swell is in the 0.5-1.5m range – fun-sized and rideable when the wind cooperates. It's a game of patience and reading the charts, but when a low-pressure system stalls off the Florida coast, La Setenta can light up with punchy, long-period lines.

Fair Surf Season (March - April & October)

Shoulder months offer a mixed bag. March and April see average swell heights drop to 0.5-0.6m and periods shorten to 5.4-5.7s, while ideal wind windows shrink to around 18%. The North Atlantic is still active, but the storm track shifts north, reducing the frequency of quality NW swell. However, the occasional late-season cold front can still produce clean conditions with south winds. October marks the ramp-up as autumn begins; swell heights climb back to 0.6m and wind ideal percentages rise to 19%. The swell direction mix leans heavily on ENE (20-31% of all waves), but those east angles are largely blocked by the island and don't reach the break. You need those precious windows of NW to N swell to align with a southerly breeze – it happens, but not often. Overall, these months are for the committed local who knows the forecast windows.

Low Surf Season (May - September)

Summer brings the lowest energy of the year. From May through September, average swell heights bottom out at 0.3-0.4m and periods drop to 4.4-4.9s – think choppy, short-period windswell from the relentless trade winds. Ideal offshore wind percentages plummet to 3-14%, as the Bermuda High locks in a persistent easterly flow. The predominant swell direction is ENE (42-54% of all waves in some months), which is shadowed completely by the surrounding landmass, leaving La Setenta starved of any meaningful energy. The rare exception comes from a tropical system or a rogue summer cold front that can generate a brief pulse of NW swell, but these events are few and far between. For most surfers, this is the time to travel or focus on other sports – the wave quality is simply too inconsistent for a worthwhile session.

December: Winter High Season

December matches November with averages of 0.7m and 6.1s, and ideal wind at 23%. NNW swell again dominates at 19.2% of waves, with NE at 19.5%. Optimal direction share is 34.1%. The North Atlantic is firing, sending frequent groundswell towards Cuba. The dominant trade wind flow is still present (E and ENE about 38% of wind), but the increased frequency of winter cold fronts means more days with offshore southerly winds. When the conditions align – usually after a frontal passage – you can expect clean, chest to head-high waves with good shape. December is the pinnacle of the surf season; a time to watch the charts and be ready to paddle out.