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Conditions at San Augustin in May
May: Peak Southern Swell
May hits the seasonal high point for wave period at 14.1s, with average heights around 5ft (1.6m). The directional story is outstanding for San Augustin: SSW produces 70% of the total swell, S adds 15.0%, SW 8.2% and SSE another 2.0% - more than 95% of the energy arrives from the favorable SSE-SW window. The bulk of the swell sits in the 1-1.5m (3-5ft) and 1.5-2m (5-6.5ft) classes, with some 2-2.5m (6.5-8ft) SSW bombs on the bigger days.
Ideal winds run 52%, and although the afternoons can see W/WSW breezes, mornings frequently stay glassy with N to NW offshore flow. The wet season is starting: precipitation averages 1.74mm/day, while air temperature sits at 29.7°C and water temperature is a warm 29.8°C. If you can put it all together, May is the month when 'clean, powerful south swell' is a statistical certainty rather than a lucky break.
Average Spot conditions at San Augustin in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at San Augustin 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 San Augustin for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at San Augustin 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 San Augustin.