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Conditions at Supertubes in August
August: Long-Period King Swell
August brings the longest average wave period of the year at 13.3s, with a still-massive average swell height of 9ft (2.7m). The direction distribution is slightly cleaner than July: SW jumps to 25.6 percent, WSW holds at 14.0 percent, and W adds 4.1 percent. This is deep-water groundswell, with periods in the powerful long-period band and a tendency for heavy set waves to hold their shape all the way through the reef.
Wind remains midwinter-fickle. The W/NW onshore sector still dominates a significant portion of the rose, and ideal offshore conditions are only 18 percent. However, with such long periods, even a moderate S/SW wind can keep the surface smooth enough for serious barrels. Air temperature is at the yearly low, averaging 15.5°C (10.3-20.2°C), water temp 17.6°C, and precipitation begins to ease to 3.12 mm/day. August is all about patience between cold fronts.
Average Spot conditions at Supertubes in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Supertubes during August. 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 Supertubes for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Supertubes for August. 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 Supertubes.