Conditions at Praia da Vieira in August
August: More of the Same, With a Touch More Size
August remains locked in the low season, with an average swell height of 4ft (1.3m) and a period of 9.0s. The swell distribution is a carbon copy of July at first glance-NW 50.8%, NNW 29.2%, WNW 16.1%-but there is a slightly better spread of 3-5ft (1-1.5m) waves, keeping the beach from going completely flat. The wind is still the weak link: NNW dominates at 57.1%, and ideal offshore conditions occur only 7% of the time. However, the late-August pattern often starts to show early signs of life as the first distant North Atlantic storms form and send low-period pulses toward the Portuguese coast. Water temp remains warm at 18.1°C and air averages 21.4°C, with rain almost non-existent. The odd clean, waist-to-chest-high session is possible when the morning offshore lines up, but it's still a long way from the main event.
Average Spot conditions at Praia da Vieira in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Praia da Vieira 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 Praia da Vieira for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Praia da Vieira 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 Praia da Vieira.