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Conditions at Jan Juc in September
September: Spring Power with a Side of Sea Breeze
September is still very good, but the balance begins to shift. The average period peaks at 12.6s - the longest of any month - and average height holds at around 6ft (1.8m). Swell direction remains SW-dominated (45.0%) with WSW at 15.6% and SSW at 10.3%, so the Southern Ocean is still sending a lot of quality groundswell toward Victoria's Surf Coast.
Wind becomes a slightly bigger variable. Ideal wind drops to 44%, with WNW (15.9%), NNW (12.7%) and W (13.0%) still leading, but the return of spring sea-breeze cycles can create bumpy afternoons. Air temperature begins to warm up to an average of 12.1°C, and water temperature sits at a cold 13.4°C. Rainfall remains significant at 2.60mm/day. Overall, September delivers the longest, most powerful swells of the year, but it pays to time your sessions around the morning offshore windows.
Average Spot conditions at Jan Juc in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Jan Juc during September. 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 September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Jan Juc for September. 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.