Conditions at Foz in August
August: Small Summer Surf with Warm Water
August is a marginal summer month, with average swell heights at 0.9m (3ft) and periods around 8.9s. The wave direction data still shows a strong NW/NNW signal - 37% and 37% - but it is mostly made up of weak, short-period waves. NE winds (23%) and ENE winds (18%) remain the dominant summer pattern, keeping the conditions bumpy more often than not; offshore flow from SSW/SW totals only 23%. Only 26% of the time can we call the wind ideal. On the positive side, the water is at its warmest: 20.3°C, with air temperatures averaging 18.6°C and minimal rainfall at 1.3mm/day. Small boards and a spring suit are enough for the occasional clean, shoulder-high day, but August is generally a month for resting up rather than chasing heavy waves.
Average Spot conditions at Foz in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Foz 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 Foz for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Foz 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 Foz.