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Conditions at Jan Juc in July
July: Peak Winter, Maximum Offshore Wind
July is the benchmark month at Jan Juc. Ideal wind conditions peak at 53%, and the average swell height nudges up to around 6ft (1.8m) with a 12.2s period. The swell rose still shows SW (33.0%) as the main source, but WSW (16.7%) and W (7.0%) are significant, reflecting the powerful west-southwest groundswell that the ocean is generating. This is the heart of the winter storm track in the Southern Ocean, and Jan Juc receives the benefits in the form of well-stacked, long-period sets.
What sets July apart is the wind. NNW (18.7%), WNW (18.2%) and NW (14.1%) make up over half of the wind distribution, delivering clean offshore conditions across the bay. When you combine that with the cooler air temperature of 11.1°C and water temperature of 13.7°C, you get crisp, hollow surf with far fewer surface textural issues than the summer months. Rainfall is high at 2.54mm/day, so expect episodic frontal passages followed by bluebird northwesterly flow - the classic winter combo for the Surf Coast.
Average Spot conditions at Jan Juc in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Jan Juc 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 Jan Juc for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Jan Juc 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 Jan Juc.