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Conditions at Jeffreys Bay in July
July: Midwinter Groundswell Machine
July holds the peak with 10ft (3.1m) average swell and the longest average period of the year at 12.5s. Ideal wind remains high at 48%. SW (16.6%) and SSW (9.0%) are again the primary swell producers, with S/SSE providing mid-range energy. The favorable ESE/E sector is small (1.7%), but that is classic J-Bay midwinter - raw SW groundswell doing the heavy lifting. Winds stay favorable: W (17.4%), WSW (13.3%), and WNW (9.5%) dominate, with NNW (15.6%) also offering offshore/clean alternatives. Expect heavy, grinding barrels when the sets push through. Water temp is 16.7°C, air temp averages 14.7°C, and precipitation is 1.11mm/day.
Average Spot conditions at Jeffreys Bay in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Jeffreys 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 Jeffreys Bay for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Jeffreys 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 Jeffreys Bay.