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Conditions at Praia da Cal in August
August: Size Holds, Winds Get Trickier
August is the last true winter month and still delivers. Average wave height is 5-6ft (1.5-1.8m) with a period of 9.2s, so the swell is powerful but not as long-period as May-June. ENE (18.7%) becomes the dominant swell direction again, alongside E (14.8%), ESE (12.2%), SE (12.8%), SSE (12.4%) and S (13.3%). That ENE component means more easterly swell in the mix, which can be a little more affected by the onshore/cross winds. Ideal wind drops to 45%, and while the offshore quadrant (W, WNW, NW, NNW) still shows around 18% combined, the NE trades rebuild to 15.4%. The height charts still have plenty of 5-8ft (1.5-2.5m) waves, plus a few rare over 8ft (2.5m) outliers. Water is stuck at 16.2°C, air 14.7°C, and rain is moderate at 4.11 mm/day. The days are there, but pick your windows carefully.
Average Spot conditions at Praia da Cal in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Praia da Cal 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 Cal for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Praia da Cal 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 Cal.