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Conditions at Cayo Coco in May
May: The Trade-Wind Monsoon Begins
May marks the clear onset of the Caribbean low season at Cayo Coco. The average wave height drops to 2.0ft (0.6m), the average period falls to 3.1s, and the swell spectrum becomes overwhelmingly easterly: E and ENE swells combine for about 74% of all observations, while the optimal N/NNW/NW quadrant is reduced to just 3%. The wind field is equally locked into the trades, with E and ENE winds totaling around 55% and a broad 20-40kph core that puts cross-onshore texture on every north-facing beach. Ideal offshore winds from the S/SSW/SW appear only 2% of the time. This is the time to start looking for tropical cloud clusters or distant storms rather than classic North Atlantic fronts. Even if a stray N swell sneaks in, the short, messy period will limit the options to small, groveling waves. Air temperature warms to 27.1°C, water reaches 26.9°C, and rainfall ramps sharply to 3.72mm/day, signalling the start of the wet season.
Average Spot conditions at Cayo Coco in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Cayo Coco 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 Cayo Coco for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cayo Coco 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 Cayo Coco.