Conditions at Carcavelos in August
August: Summer Windswell on the Atlantic
August is almost a clone of July in terms of surf energy. Average swell height is 1.3m (4ft) and average wave period is 8.9 seconds. The Waverose is overwhelmingly dominated by NW (44.4%) and NNW (40.1%), with WNW at 12.2%. The SSW-facing beach still sees the refraction of these north-westerly pulses, but the lack of true S/SW swell means Carcavelos rarely reaches the quality thresholds that make it famous. The bigger days on the Waverose live in the 1-2m (3-6.5ft) range; anything larger is a rare treat.
Wind stats are similar to July, with NNW at 61.6% and NW at 12.0%. Ideal wind climbs slightly to 40% as light N/NNE flows become slightly more regular. Water temperature reaches its annual max at 18.0°C, air temp averages 20.5°C, and rainfall is negligible at 0.18 mm/day. A 3/2, a shortboard or a groveler, and an early alarm are the keys to making the most of the small August surf.
Average Spot conditions at Carcavelos in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Carcavelos 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 Carcavelos for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Carcavelos 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 Carcavelos.