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Conditions at Prainha in May
May: Peak Autumn Consistency
May is one of the best months of the year at Prainha. The average swell height is 1.7m (5-6ft), the average period reaches 9.8s, and the wind is ideal 50% of the time. South-directed energy now dominates, with south swell at 18.1%, south-southeast at 16.7%, east-southeast at 13.7% and southeast at 13.4%. This stronger southerly component delivers more open-ocean groundswell and more size in the 1.5-2.5m (5-8ft) range. The wind distribution is much more balanced than in summer, with west, west-northwest, northwest and north-northwest breezes combining for strong offshore windows. Water temperature drops to 20.4°C and the air averages 16.6°C, so a spring suit is needed. If you only have one month to chase Prainha, May is it.
Average Spot conditions at Prainha in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Prainha 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 Prainha for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Prainha 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 Prainha.