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Conditions at Pennington Bay in July
July: Midwinter Power and Peak Consistency
July stacks up as one of the most consistent months at Pennington Bay. The average swell is 1.9m (6.2ft), period holds at 12.0s, and wind data show a massive 44% share from the offshore N/NW/WNW/NNW sector. NNW alone accounts for 18.1% of all winds, with ideal surfing conditions 27% of the time. Cold fronts rolling through the Bight leave behind a fresh, structured northwest wind - precisely what the bay needs to groom the incoming groundswell.
The swell direction remains SW-heavy at 31%, with SSW adding 17% and WSW another 12%; true S swell is only 5%, so much of the energy arrives after wrapping into the southeastern opening of the island. It's raw, powerful and occasionally unruly, but with solid averages and long intervals, the quality windows are remarkable. Water temperature cools to 15.2°C, air averages 12.9°C, and rain remains significant at 2.43mm/day. This is winter surf at its most authentic.
Average Spot conditions at Pennington Bay in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Pennington Bay 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 Pennington Bay for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Pennington Bay 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 Pennington Bay.