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.

In March, Praia do Silveira offers fairly consistent surf conditions with an average swell height of 1.5m and a solid period of 9.3s, suggesting well-formed, powerful waves ideal for intermediate to advanced surfers. The swell predominantly arrives from the SE to S quadrant, with the highest frequency in the 1-2.5m range, meaning waves are often rideable with good energy. The ESE to SSE directions provide the most consistent swell, particularly in the 1-1.5m and 1.5-2m ranges, while larger waves (2m+) are less frequent but still possible, mostly from the S. Wind conditions are a mixed bag—only 21% of the time are they ideal (likely light offshore or sideshore), with northerly to northeasterly winds being the most common and often blowing at 10-30kph, which can create choppy or cross-shore conditions. However, when winds cooperate, the spot can offer clean, powerful waves with good shape, especially on mid to high tides. Overall, March is a decent month for surfing here, though wind management and timing are key for scoring the best sessions.