Conditions at Bico in August
August: End of Summer Lull
August keeps Bico in summer slumber. Average swell height remains around 3ft (1.0m) and period ticks up slightly to 9.1s. NW continues to dominate the swell window at 66%, with WNW (24%) adding intermittent pulses. There are still rideable waves, especially when a mid-Atlantic low sends a longer-period NW swell our way, but consistency is low.
Onshore NNW winds blow 55% of the time, and ideal offshore conditions are only 6%, making clean surf a rare commodity. Air temperatures peak at an average of 20.5°C, water temps hit 17.8°C, and precipitation is almost nil (0.18 mm/day). Consistent surf hunters should keep an eye on any tropical storms or strong lows spinning up in the Atlantic, as they occasionally send more substantial swell toward Portugal even in the heart of August.
Average Spot conditions at Bico in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Bico 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 Bico for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Bico 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 Bico.