Yumuri - surf spot statistics

Yumuri, Cuba, is a surf spot predominantly influenced by wind swells, with ground swells playing a minor role throughout the year. The best months for surfing are generally those with a higher likelihood of clean conditions and manageable swell size. September stands out as the most promising month, with 17% ground swell contribution—the highest of the year—and 23% good wind conditions, which is also the peak for favorable winds. While the mean swell size remains modest at 0.8m, the reduced wind swell dominance (68%) and an increase in ground swell make it a more reliable time for surfers. Late summer and early autumn (July to September) offer a slight improvement in wind conditions, though wind swells still dominate. The winter months (November to February) bring slightly larger swells (1.1m), but unfortunately, they coincide with the worst wind conditions, with bad winds occurring 85-89% of the time. Spring and early summer (April to June) see smaller swells and persistent wind swell influence, making them less ideal. Overall, September is the best month for surfing at Yumuri, offering a rare balance of decent swell composition and the least unfavorable winds, though even then, conditions remain challenging due to the spot's strong reliance on wind swells and often onshore winds. Surfers should be prepared for small to medium-sized waves and frequently less-than-ideal wind setups year-round.

In September, Yumuri receives an average swell height of 0.8m with a decent period of 8.2s, offering relatively consistent conditions for surfers. The dominant swell direction is primarily from the east, with ENE and E swells making up the largest share (28.94% of waves in the 0.5-1m range and 20.82% from ENE). The best-quality waves tend to come from these directions, especially when accompanied by lighter winds. Swells from the NE and E produce the most rideable waves, with a notable portion (10%) reaching 1-1.5m from the east, occasionally peaking at 2.5m. Wind conditions are variable, but only 23% of the time do they align favorably for surfing (light offshore or cross-shore). The ENE wind direction is most common, often blowing at 10-20kph (22.48% frequency), which can be rideable but may become choppy if stronger. The best windows are likely during periods of lighter ENE or E winds, which can coincide with the incoming E swell for cleaner, more organized waves. September isn’t the most consistent month for surf in Yumuri, but when conditions align, intermediate surfers can find fun, waist-high waves with occasional shoulder-high sets. Keep an eye on wind forecasts, as onshore flow from the east can disrupt conditions.