Conditions at Rincao in April
April: The South Atlantic Begins to Roar
April is when Rincao starts transforming. The average wave height rises to 5ft (1.5m) and the period sits at 9.4 seconds, with significant amounts of SSE (18 percent) and S (14 percent) swell joining the E/ESE/SE mix. The stronger south components mean the south-east facing beach sees more powerful, longer-period lines, and the proportion of surfable overhead waves climbs noticeably.
The wind odds take a big step forward: ideal offshore flow reaches 41 percent - the first of several excellent months. NE/ENE winds are still present but no longer dominate, and prefrontal W/NW flow becomes common ahead of cold fronts. With air temperatures dropping to a comfortable 21.7°C, water at 22.7°C and rainfall at its annual low of 2.99mm/day, April often delivers clean, punchy surf with classic autumn conditions.
Average Spot conditions at Rincao in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Rincao during April. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Rincao for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Rincao for April. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Rincao.