Leblon - surf spot statistics

Leblon, Brazil, offers surfable conditions year-round, but the best months for surfers are typically from February to August when ground swell dominates and wind conditions are more favorable. February stands out with a balanced mix of 39% ground swell and 59% wind swell, coupled with 53% good wind days and a mean swell size of 1.0m. March and April see an increase in ground swell contribution (45% and 52%, respectively), with April offering the best swell consistency (no days without swell) and a slightly larger mean size of 1.2m. May through August maintains strong ground swell influence (51-59%), particularly in May and June, where swell size remains around 1.2-1.3m. Wind conditions are most reliable in February and June, with over 50% favorable winds, though August starts to see a decline. September onwards brings a drop in ground swell and a sharp increase in bad wind conditions, making the earlier months preferable. For consistent, clean waves with decent size, target February to June, with April and May being peak months when ground swell peaks and wind interference is manageable. Winter months (June-August) can still deliver good sessions, but autumn (March-May) provides the most balanced combo of swell quality and wind reliability. Avoid September to November, when onshore winds dominate and swell consistency drops.

In December, Leblon offers mostly small to moderate surf with an average swell height of 1.0m and a decent period of 9.6s, providing some energy despite the modest size. The swell is predominantly from the south (SSE to S), with the best consistency in the 0.5-2m range—peaking around 1-1.5m (16.12% frequency) and occasionally reaching up to 2.5m. Smaller easterly swells (E to ESE) contribute occasionally but lack power. Wind conditions are favorable for surfing 45% of the time, with light to moderate speeds (0-20kph) prevailing from NE to SE. However, stronger onshore winds (SE to ESE) above 20kph can occasionally degrade conditions. Overall, December sees rideable waves, best suited for longboarders or those comfortable with smaller, peaky surf, though patience is needed for the cleaner sessions when winds cooperate. Expect a mix of playful waves and some chop, especially on southerly swells with cross-offshore NE winds.