Conditions at Playa de San Juan in May
May: Grovelling Season Arrives
May marks a definite shift toward early summer conditions. The average swell height drops to 1.3m (4ft) and the period to 9.1s, which puts most surf in the average-to-punchy category. The swell rose still shows energetic NNE (30.1%), N (24.9%) and NNW (33.2%) directions, but the majority of the energy has shifted into the 0.5-1m (2-3ft) and 1-1.5m (3-5ft) bands. It is grovelling territory unless a late-season groundswell appears.
The wind becomes the dominant enemy. Ideal offshore flow is present just 3% of the time, and NNE winds take over at 38.5%, backed by NNW at 23% and N at 20.2%. Most days are onshore with 20-40kph gusts. Air temps reach 19.4°C, water 19.0°C, and rainfall is almost non-existent; expect dry but blown-out conditions.
Average Spot conditions at Playa de San Juan in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Playa de San Juan during May. 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 May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Playa de San Juan for May. 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.