Conditions at Sao Juliao in August
August: Late Summer Transition
August is only marginally better than July. The average swell remains small at 1.4m (4.6ft), with period nudging up slightly to 8.9s. The swell direction is still dominated by NNW (50.7%) and NW (35.1%), but there is a small increase in WNW (10.2%) compared to July, which helps open up the beach a little more. The wind pattern stays firmly northerly: NNW winds account for 54.7% of observations, N winds another 15.0%, and ideal offshore wind percentages only reach 5% of the time. Still, late August starts to feel like autumn, and occasional pulses of longer-period NW energy can bring fun, clean waves for a summer board. Water temperature peaks at 17.8°C, air temps are the warmest of the year at 20.7°C, and precipitation is a mere 0.25 mm/day. Look for dawn glass and the first signs of the autumn swell.
Average Spot conditions at Sao Juliao in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Sao Juliao 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 Sao Juliao for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Sao Juliao 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 Sao Juliao.