Conditions at Playa de San Juan in August
August: Summer Slop with a Side of Surf
August remains firmly in the low surf season. The average swell height is 1.3m (4ft) and the period 7.7s, so even though NNE swell dominates with 58.6% of the wave rose, the energy is far too short-period to produce anything with real power. N (29%) and NNW (12%) fill out the rest, again mostly in the 0.5-1.5m (2-5ft) range.
Wind conditions are equally grim for clean waves. Offshore wind is absent - 0% ideal - and NNE wind blasts at 63.5%, with NNW at 10.4% and N at 20.4%. The strongest wind sector sits between 20-40kph, keeping the surface constantly torn up. Water temp climbs to 21.8°C and air temp to 22.6°C, making it a beautiful beach day but a poor surf day.
Average Spot conditions at Playa de San Juan in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Playa de San Juan 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 Playa de San Juan for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Playa de San Juan 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 Playa de San Juan.