Conditions at Rincao in March
March: The Shoulder Season Starts to Ramp Up
March marks the beginning of the transition toward autumn. Average swell height is edging up to 4-5ft (1.4m) and the period lengthens to 9.1 seconds, giving the lines noticeably more power. The directional spread shifts a bit more into the ESE and SE through SSE window - ESE holds 27 percent, SE 22 percent and SSE 17 percent - so the sandbar starts seeing more consistent, better-shaped groundswell from the South Atlantic.
Offshore wind odds climb to 36 percent, while the NE/ENE trades weaken slightly compared to summer. Air temperatures are still warm at 23.6°C, water temperatures peak around 23.5°C, and rainfall eases to 4.0mm/day. The combination of longer periods, more favourable wind and still-tropical water makes March a hidden gem, especially before the autumn fronts become fully active.
Average Spot conditions at Rincao in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Rincao during March. 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 March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Rincao for March. 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.