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Conditions at Cidreira in August
August: The Trade Winds Reassert Themselves
August marks the beginning of the exit from prime winter conditions. The average swell height remains at 5.9ft (1.8m) and the period is 9.1s, but the wind quality fades: ideal wind drops back to 22%. The wind rose is led by a stronger NE flow (26.7%), with ENE (12.0%) also on the rise; the W (6.3%), WSW (7.1%) and SW (7.3%) offshore windows are still there, but they are less frequent. On the swell side, ENE (17.5%) is the standout direction, followed by E (12.6%), S (12.1%), ESE (11.2%), SE (10.7%) and SSE (10.7%). With so much energy from the E/ESE quadrant and an average 9.1s period, the raw material is still there for good waves. Look for the windows right after frontal passages, when W/NW winds groom the strong ENE/E swell before the NE trades rebuild.
Average Spot conditions at Cidreira in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Cidreira 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 Cidreira for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cidreira 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 Cidreira.