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Conditions at Boca Damas in May
May: Southern-Hemisphere Power Takes Over
May is a serious surf month at Boca Damas. Average swell height jumps to 1.3m (4.3ft), average period hits 14.1s - the highest of any month - and the SSW/SW combination accounts for over 99% of the wave energy. About 72% of the waves are in the powerful 3-5ft (1-1.5m) range, another 21% are 5-6.5ft (1.5-2m), and a small but meaningful share reaches 6.5-8ft (2-2.5m). These are true Southern Ocean groundswells, produced by intense South Pacific winter storms and delivered with a long, clean period. Wind becomes trickier: ideal offshore conditions fall to 20%, and the tropical onshore flow (S/SSW/SW/WSW) is more widespread, though mostly light. Heavy rain arrives at 7.83 mm/day, but the ocean stays warm at 29.3°C. When a morning N/NNE offshore meets this SSW swell, Boca Damas genuinely fires.
Average Spot conditions at Boca Damas in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Boca Damas 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 Boca Damas for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Boca Damas 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 Boca Damas.