Praia do Silveira - surf spot statistics

Praia do Silveira, Brazil, offers surfable waves year-round, but the conditions vary significantly by season. The best months for surfing here are generally from May to September, when ground swells become more dominant, providing cleaner, more consistent waves. May and June stand out with ground swell probabilities at 42% and wind swells dropping to 57-58%, resulting in better-quality waves. During this period, mean swell sizes range between 1.6m and 1.7m, offering solid overhead conditions on good days. Wind conditions, however, remain somewhat challenging, with favorable winds only around 25-26% of the time in May and June, though this is still better than other months. July and August see a slight dip in ground swells (34% and 31%) but maintain decent swell sizes (1.7m). September has the largest average swell (1.9m), but wind conditions worsen, with bad winds occurring 86% of the time. The worst months for surfing are from October to February, when wind swells dominate (81-84%), leading to choppier, less predictable waves, and good wind conditions become rare (13-21%). Swell size in these months averages around 1.4-1.7m, but the high frequency of poor wind conditions makes sessions less ideal. For surfers seeking quality waves, mid-year (May to August) is the prime window, despite the persistent wind challenges. Early morning sessions or sheltered spots nearby may help mitigate the often onshore winds.

August at Praia do Silveira offers consistent surf with an average swell height of 1.7m and a favorable period of 9.6s, providing good energy for intermediate to advanced surfers. The swell predominantly comes from the ENE to SSE directions, with the most frequent wave heights ranging between 1-2.5m. Southerly swells (S, SSE) tend to bring larger waves, with a notable percentage exceeding 2.5m. Wind conditions are a mixed bag—only 18% of the time are they ideal (typically light offshore from ENE or E), but stronger onshore winds from NNE and N are common, which can create choppy conditions. The best sessions will likely occur when ENE or E swells combine with lighter winds, offering cleaner, more organized waves. While not a big-wave month, August delivers dependable surf with occasional standout days.