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 September, Leblon offers decent surf conditions with an average swell height of 1.3m and a solid period of 10.5s, providing well-formed waves. The primary swell directions are S, SSE, and SE, with a notable portion (around 16%) of waves in the 1-1.5m range from the south—ideal for this beach. Larger sets (1.5-2.5m) are less frequent but still present, mostly from southerly directions, offering occasional punchy peaks. Wind conditions are variable, with offshore or light winds (ideal for surfing) occurring 38% of the time, predominantly from the NW to NE quadrant. However, easterly and southeasterly winds can occasionally disrupt conditions, particularly at higher speeds (20-30kph). Overall, September is a reliable month for surfers at this spot, with the best sessions likely during mornings when winds are lighter and swells from the south and southeast provide clean, rideable waves.