Cidreira - surf spot statistics

Cidreira, Brazil, offers consistent surf year-round, but the best conditions typically occur between May and July. During these months, the swell composition shifts toward a higher percentage of ground swell (36% in May and June, 27% in July), which tends to produce cleaner, more organized waves compared to the dominant wind swells seen in other months. The mean swell size also holds steady at around 1.6–1.7m, providing solid surf without being overly heavy. Wind conditions are relatively better in these months, with good wind days peaking at 20–21% (May–June), though onshore and cross-shore winds still dominate. Outside this window, wind conditions worsen, particularly from September to December, when bad winds reach up to 90%. Swell size peaks in September (1.9m), but poor wind reliability makes it less ideal. Early season (January–April) sees smaller swells (1.5–1.6m) and higher wind swell influence, reducing wave quality. For surfers prioritizing consistency, May to July is the prime window, offering a balance of swell energy and slightly more favorable winds, though offshore days remain scarce.

April at Cidreira offers surfers a mix of decent swells but inconsistent wind conditions. The average swell height is 1.6m with a solid 9.1s period, ideal for generating clean, rideable waves. Most swells come from the NE to S quadrants, with the biggest contributions (1.5-2.5m range) from the S, SSE, and NE directions, suggesting good energy and shape when winds cooperate. However, winds are often problematic—only 16% of the time are they ideal (likely light offshore or sideshore from the W/NW). The predominant winds are NE to SE (moderate to strong onshore), which can create choppy conditions, especially when combined with NE or E swell. The best windows are when lighter W/NW winds align with S or SSE swells, offering cleaner faces. While there are rideable waves most days, premium conditions are selective, requiring patience for the right wind-swell combo.