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Conditions at Sumner Avenue in August
August: The Late Summer Spark
August still sits in the low season with an average height of 0.9m (3ft), but there are signs of life. The average period rises to 7.5s, and the swell rose remains favorable - SSE (23.1%), SE (20.3%), S (16.3%) and ESE (14.9%) account for three-quarters of the energy. The wind is still largely SSW (16.7%) and SW (12.8%), but the 'ideal wind' percentage climbs back to 28%, and the first tropical storms of the Atlantic season can deliver longer period E/ESE swell. Water temperature reaches its yearly peak at 23.6°C (75°F), with air temps around 23.7°C (75°F) and precipitation at 3.71 mm/day. It's not reliably good yet, but savvy surfers start watching the tropics.
Average Spot conditions at Sumner Avenue in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Sumner Avenue 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 Sumner Avenue for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Sumner Avenue 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 Sumner Avenue.