Tramandao - surf spot statistics

Tramandaí, Brazil, offers fairly consistent surf year-round, but the best conditions typically occur between April and August when ground swell percentages increase, wind conditions improve, and swell size remains solid. During these months, ground swell contribution ranges from 21% to 36%, peaking in May and June, which translates to cleaner, more organized waves compared to the dominant wind swells seen in other months. Swell height averages between 1.7m and 1.8m, providing decent power for intermediate to advanced surfers. Wind conditions are also most favorable in this window, with good wind days peaking around 20-21% in May and June—still not ideal, but better than the rest of the year, where strong onshore winds (bad conditions) dominate 80-90% of the time. September stands out for larger swells (2.0m mean) but suffers from poor wind conditions (90% bad), making it hit-or-miss. From November to March, wind swells (85-89%) prevail, ground swells drop below 15%, and unfavorable winds are almost constant (85-90%), leading to choppier, less reliable surf. For the most balanced conditions—reasonable ground swell, manageable winds, and consistent swell size—mid-autumn to early winter (April to July) is the prime window, with May and June being the standout months. Outside of this period, surfers will face weaker swells and challenging winds, making sessions more variable.

In January, Tramandaí offers surfers moderate conditions with an average swell height of 1.6m and a decent period of 8.2s, indicating relatively clean and organized waves. The swell predominantly arrives from ENE, E, and S directions, with the most consistent waves in the 1-2.5m range (ENE contributing 12.37% at 1-1.5m and 8.26% at 1.5-2m). Larger swells (over 2.5m) are rare, occurring only 0.1% of the time from ENE and even less from other directions. Wind conditions are more variable, with only 13% of days providing ideal offshore or light cross-shore winds (typically NE to E directions). However, NE winds can be strong (20-40kph, 5.9-8.38% occurrence), potentially causing choppiness, while lighter winds from SSE to S (1.48-2.97% at 10-30kph) may offer cleaner sessions. Surfers should target days with ENE or E swell and lighter winds for the best experience, though consistency is moderate. Overall, January delivers rideable waves but requires selectivity for optimal conditions.