Sao Joao do Norte

Sao Joao do Norte is an exposed beach/jetty surfing spot at the northern jetty (Molhe Norte) of the Lagoa dos Patos entrance in Rio Grande do Sul. The jetty and nearby channel discharge strongly influence what you get on the day: when sandbars form well next to the jetty, surfers can find more reliable, peeling waves with decent ride length. Surf quality is described as variable/inconsistent across sources, but the setting is generally suited to intermediate surfers who can handle the spot’s powerful water movement. Conditions are strongly tied to the combination of swell and wind: southeast/east-southeast (and related SE/E/ESE) swells are highlighted as optimal, while northwest winds are typically clean and offshore at this location, supporting better wave shape. Safety is the key constraint. Strong rip currents and strong currents are repeatedly mentioned—particularly near the jetty and channel entrance—making bigger days significantly more hazardous. On top of that, heavy rain can worsen conditions by increasing turbidity from lagoon discharge, so checking the water color before committing to the session is strongly advised. Seasonally, the spot is most promising in autumn and winter in the southern hemisphere. Reported best months include April through September (with June singled out in one guide), and temperatures drop notably in winter, so planning for colder water and wind chill is important.