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Conditions at Sumner Avenue in July
July: Peak Summer Lull
July is the classic mid-summer low. Average swell height remains at 0.9m (3ft) with a short 7.0s average period. The swell rose is incredibly concentrated: SSE (30.9%), S (27.4%), SE (17.1%) and ESE (10.1%) combine for about 85% of observations, but 0.5-1m (2-3ft) is the dominant class. The Bermuda High pumps a relentless SSW (19.9%) and SW (15.2%) flow across the area, and onshore ESE/SE/SSE/S winds total around 24%, so surface texture is often poor. Ideal offshore conditions are only 26%. Water temps hit 22.6°C (73°F), while air temps average 23.9°C (75°F) and precipitation averages 3.50 mm/day. It is tempting to paddle out, but expect plenty of small, soft sections and afternoon sea breezes.
Average Spot conditions at Sumner Avenue in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Sumner Avenue during July. 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 July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Sumner Avenue for July. 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.