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Conditions at Mossel Bay in July
July: The Deep Freeze of Southern Ocean Swell
July offers the longest average period of the year at 12.3s along with a meaty 7.5ft (2.3m) average swell. SW swell dominates at 29 percent, SSW contributes 23 percent, and there is an uptick in the over-8ft (over-2.5m) category. The Southern Ocean is in full roar, and the raw energy arriving at Mossel Bay is unmistakable.
The problem remains the wind. Ideal offshore flow sits at just 23 percent, the lowest of the year, while W, WSW, WNW, NW and NNW winds pile in with cold fronts. Air temperature is the coolest at 12.4°C and water temperature falls to 15.3°C. When the wind does clock into S/SW, the surf can turn angry and perfect in equal measure, but those windows are rare.
Average Spot conditions at Mossel Bay in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Mossel 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 Mossel Bay for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Mossel 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 Mossel Bay.