Conditions at Guincho in August
August: Late Summer Windswell Watch
August follows July's script with a slightly better subplot. Average swell remains at 4-5ft (1.2-1.5m) and period ticks up to 8.9s, with NNW swells at 50.7% and NW at 35.1%. Wave heights in the 3-5ft (0.9-1.5m) and 5-7ft (1.5-2.1m) bands are well represented, so there is almost always something to ride - but the usual issue is wind. The nortada eases only slightly, with NNW winds blowing 61% of the time and ideal offshore wind a scarce 4%. Warm, sunny and virtually rain-free, the coast is packed and so is the water. Water temperature hits 18.3°C, the warmest of the summer. Look for bouts of WNW groundswell from distant tropical lows or the season's first Atlantic storms; combined with a rare east wind, those are the days that remind you Guincho can hollow up even in late summer.
Average Spot conditions at Guincho in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Guincho 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 Guincho for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Guincho 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 Guincho.