La Setenta - surf spot statistics

La Setenta in Cuba is primarily a windswell-driven spot, with ground swells being practically nonexistent throughout the year. The best months for surfers are from October to December, when windswell frequency peaks at 47-62%, and the mean swell size ranges between 0.6-0.7m. November stands out as the most consistent month, with the highest windswell probability (62%) and decent swell size (0.7m). December also offers favorable conditions, with 58% windswell occurrence and the best wind conditions of the year (19% good winds). January and February follow closely with moderate windswell activity (50-56%), though wind conditions remain poor (84-85% bad winds). From March onward, surfable conditions decline significantly, with windswell dropping below 50% and swell size diminishing. The summer months (June-September) are particularly flat, with minimal windswell (11-16%) and extremely unfavorable winds (93-96% bad winds). For surfers seeking rideable waves, the window from late autumn to early winter (October-December) is the optimal period, despite generally onshore winds. Spring and summer are best avoided due to lack of swell and poor wind alignment. Patience and a flexible schedule are key, as even in peak months, good wind days remain below 20%.

In September, La Setenta in Cuba experiences generally small and inconsistent surf conditions, with an average swell height of just 0.3m and a short period of 4.6s, indicating weak, unorganized waves. The swell direction is predominantly from the NE (36.15% in the 0-0.5m range), with smaller contributions from the ENE and NNW, suggesting predominantly onshore or slightly angled waves that lack power. Larger waves over 1.5m are rare (less than 1% occurrence), mostly coming from the NE and NNW, but even these are infrequent and unlikely to provide quality rides. Wind conditions are not ideal, with only 7% of the time offering favorable offshore winds, while ENE and E winds (10-20kph range) dominate, often creating choppy or blown-out conditions. Surfers should expect mostly small, mushy waves with limited shape, making September a marginal month for surfing at this spot—best suited for beginners or longboarders on the rare cleaner days. Advanced riders will find better sessions elsewhere.