Conditions at Rincao in August
August: Solid Swell, but Watch the In-Between Winds
August keeps the energy high, with average swell heights at 5ft (1.6m) and an average period of 9.5 seconds. The directional distribution is beautifully balanced - ENE, E, ESE, SE, SSE and S each account for roughly 14-16 percent of the total, so the beach stays fully exposed to every bit of South Atlantic energy. A good chunk of the waves now sit in the 5-8ft (1.5-2.5m) range, meaning more serious sets rolling through.
The weaker link is wind: ideal offshore flow drops to 36 percent, while NE/ENE winds become more prominent at 17 percent and 11 percent. Late winter still delivers excellent waves, but you need to pick windows when W/NW wind and groundswell align. Water temp holds at 16.5°C, air temp at 16.6°C, and precipitation is 3.48mm/day - overall, a solid but slightly less consistent month than May-July.
Average Spot conditions at Rincao in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Rincao during August. 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 August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Rincao for August. 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.