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.

July in Cidreira offers surfers a mix of conditions with an average swell height of 1.7m and a decent period of 9.3s, indicating well-formed, rideable waves. The swell predominantly comes from the E to S sector, with the highest frequency in the 1-2.5m range (ENE to S directions), providing consistent surf. Notably, SSE and S swells deliver the largest waves, with a significant portion exceeding 1.5m—good for intermediate to advanced surfers. Wind conditions are key, as only 19% of the time are they ideal (likely light offshore or sideshore from the W/NW quadrant). However, winds from the NE to SSW often blow at 10-30kph, creating choppy or cross-shore conditions, which can reduce wave quality. The strongest winds come from the SW to W, sometimes exceeding 30kph, leading to rough surf. For the best sessions, target days with S/SSE swell and light W/NW winds. Overall, July delivers surfable waves regularly, but wind management is crucial for optimal conditions.