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Conditions at Shipwreck Beach in August
August: Still Small, With Hurricane Potential
August remains in the low season, though the average swell direction shifts even further into the east: E swell accounts for 53.3 percent, with ENE at 27.5 percent and ESE at 11.3 percent. Heights average 5.5ft (1.7m) and periods stay short at 9.3s, so most days deliver small, punchy, trade-blown waves. The ideal wind percentage improves slightly to 16 percent as the trades relax marginally, but ENE still blows 74.7 percent of the time. The wildcard is tropical activity: a hurricane or tropical storm passing south of Hawaii can generate the rare SSE/S/SW swell that this beach is built for, producing sudden, fun-sized to solid surf. Otherwise, patience is required. Air temps average 25.9°C, water temps hit 26.5°C, and rainfall is only 1.2 mm/day.
Average Spot conditions at Shipwreck Beach in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Shipwreck Beach 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 Shipwreck Beach for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Shipwreck Beach 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 Shipwreck Beach.