Conditions at Mejillones in May
May: Onshore Haze Sets In
By May the North Atlantic's big winter swell engine is winding down. Average height falls to 1.6m (5ft), average period to 9.5s, and while the direction remains optimal-NNW-heavy at 50.0 percent-the wave energy is increasingly windswell or short-period swell rather than groundswell. The N direction jumps to 21.5 percent, adding more of the same windswell texture. Wind is dominated by NNE at 39.7 percent, NNW at 22.5 percent and N at 19.0 percent; these are all onshore or cross-onshore at Mejillones, so ideal wind collapses to just 2 percent. Water temperature climbs to 19.4°C and rainfall is minimal. The result is a beach break that is fun-sized but generally soft, bumpy and hard to love. Only the cleanest, lightest days offer rippable 3-5ft (1-1.6m) peaks-good for a log or a funboard, but a long way from winter.
Average Spot conditions at Mejillones in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Mejillones 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 Mejillones for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Mejillones 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 Mejillones.