Rio Grande Jetties (Cassino Coast)

Rio Grande Jetties is an exposed beach/jetty break in Rio Grande do Sul, positioned at the entrance to the Rio Grande port area. The jetties shape sandbars that can produce consistent surf, with both left- and right-hand waves reported. Conditions are most often described as best during autumn and winter, with June singled out as a top month. Wind is commonly reported from the west to west-northwest, where it can turn offshore and help keep the surface clean. Reported conditions for June include a meaningful share of “blown” weather and a smaller share of “clean” conditions, but the spot’s offshore wind direction is specifically associated with better surf quality. Broader seasonal patterns also bring frontal influences that can affect reliability. The main challenge is safety: strong rip currents and currents are a persistent hazard, especially near rocks and close to the jetty and channel mouth. Riders are warned that currents can be extremely dangerous, and they should avoid getting too close to the jetty structure during heavier conditions. Local guidance also emphasizes checking port traffic before moving anywhere near the mouth and staying clear of navigation areas used by port vessels. Water temperatures are notably cold in the winter period (down to the low-to-mid teens °C), which typically requires thicker neoprene. While lifeguards are described as seasonal and rescue is limited, emergency services are available in the nearby towns/region.