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Conditions at Conchalio in May
May: Peak Southern Hemi Swell, Rainy Windows
May is when the Southern Hemisphere winter truly switches on. Average swell height climbs to 1.4m (4.5ft), period to 14.2s, and the SSW signal is massive at 87.5%. More importantly, 22% of all swells fall in the 1.5-2.5m (5-8ft) range, including 1.9% in the 2-2.5m (6.5-8ft) category -- the most powerful groundswell of the year so far. Conchalio will see serious, organized lines. But wind is the Achilles heel: ideal wind is just 45%, the lowest of the year. The windrose shows a broad, light pattern with no dominant offshore direction; onshore S/SSW/SW wind totals over 24%, and W/WSW flow adds leftover texture, especially in the afternoon. Rainfall jumps to 5.26mm per day, though air stays around 27.7°C and water is a warm 30.2°C. The surf is either excellent or average -- chase the dawn patrol.
Average Spot conditions at Conchalio in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Conchalio 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 Conchalio for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Conchalio 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 Conchalio.