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Conditions at Port Mary in August
August: Warm Water, Rusty Swell
August stays in the low-season pattern, but the gears start to turn ever so slightly. The average swell is 4.6ft (1.4m) with the shortest period of the year at 9.8s, meaning the surf tends to be softer, crumbly and more wind-affected. Swell direction is dominated by WSW and SW, with SSW also supplying energy, but heights still cluster in the 3-5ft (1-1.5m) range. Ideal wind improves marginally to 25 percent, though onshore SSE/S winds and cross-shore WNW/NW flow keep the surface temperamental. Water temperature peaks at 14.2°C, air averages 13.3°C, and precipitation increases to 6.10mm/day. As tropical systems begin to prowl the Atlantic, an occasional long-period S/SW swell can light Port Mary up, but day to day expect small, punchy leftovers.
Average Spot conditions at Port Mary in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Port Mary 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 Port Mary for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Port Mary 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 Port Mary.