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Conditions at Troncones in May
May: Big Southern Hemi Peak, Squally Edges
May throws down the most focused Southern Hemisphere pulse of the year. Average swell height is 1.5m (5ft) with a 14.2s period, the highest period on the calendar. The directional distribution zeroes in on SSW - a massive 75.6% of all energy - with the rest mostly SW (18.4%). There is serious power in the water: nearly 45% of the total swell is 1.5-2m (5-6.5ft) and a solid 6% ranges up to 2-2.5m (6.5-8ft). For wave size, this is premium.
The trade-off, as spring turns to summer, is the wind regime. Ideal winds fall to 31%, tied for the lowest of the year, as SW and WSW seabreezes dominate (WSW 20.1%, SW 16.9%). Rain also begins to creep back in (0.70 mm/day), and water temps rise to 28.8°C. Look for early-morning windows before the onshore flow kicks up, and be ready to pick off the biggest SSW sets - this is a month where Troncones can genuinely pump, but only for a few hours a day.
Average Spot conditions at Troncones in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Troncones 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 Troncones for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Troncones 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 Troncones.