Arpoador - surf spot statistics

Arpoador, Brazil, offers relatively consistent surf year-round, but the best conditions typically occur from February to August. During these months, ground swell percentages rise significantly, peaking in May (59%) and remaining strong through June and July (59% and 51%, respectively). Ground swells tend to produce cleaner, more organized waves compared to wind swells, which dominate the rest of the year. The mean swell size also increases during this period, averaging 1.1m to 1.3m, providing a good balance of power and rideability. Wind conditions are most favorable from January to June, with the highest likelihood of good winds in February (55%) and a steady decline from July onward. September through November sees the worst wind conditions, with onshore winds becoming more frequent (59-63% bad winds). While summer months (December-January) have smaller swell sizes (0.9m-1.0m) and higher wind swell influence, they still offer surfable waves, particularly when the ground swell component is present. For the most reliable surf with cleaner conditions, mid-year months (May-July) stand out due to the strong ground swell presence and manageable wind probabilities. However, those seeking smaller waves can still find opportunities in the shoulder seasons, though with greater variability in wind quality.

January at Arpoador offers generally favorable surfing conditions with an average swell height of 0.9m and a solid period of 9.6s, producing well-organized waves. The swell is predominantly from the S, SSE, and SE directions, with a significant portion (53%) of the wind being ideal for surfing—typically light to moderate offshore or cross-shore breezes. Waves in the 0.5-1.5m range are most common, making it suitable for intermediate to advanced surfers, though larger sets up to 2.5m occasionally roll through with enough power for more experienced riders. Wind speeds mostly stay below 20kph, reducing chop, but occasional stronger ESE or SE winds can create less favorable conditions. Overall, January delivers consistent, manageable waves with good shape, especially when winds align favorably.