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 May, Praia do Silveira offers decent surf conditions with an average swell height of 1.7m and a solid 10.0s period, providing well-spaced, powerful waves. The dominant swell directions are from the south (S, SSE, SE), which align best with the beach, contributing to the highest percentage of rideable waves, particularly in the 1-2.5m range. These southerly swells account for a significant portion of the surfable conditions, with the S direction alone delivering 11.39% of waves in the 1.5-2m range and 5.68% in the 2-2.5m range, making it the most consistent producer of quality waves. Wind conditions are less favorable, with ideal offshore or light winds occurring only 25% of the time. Northerly and easterly winds prevail, often blowing at 10-30kph, which can create choppy or cross-shore conditions. However, when winds align favorably (light ESE to SSE), the spot can offer clean, well-shaped waves. Overall, May provides a mix of surfable days, with the best sessions likely when southerly swells coincide with lighter winds, offering intermediate to advanced surfers punchy, well-formed waves.