Jan Juc - surf spot statistics

Jan Juc in Australia offers consistent surf conditions year-round, with ground swells dominating across all months, peaking from April to September at 90% or higher. The best months for surfers are typically from April to September, when ground swell reliability is highest (90–94%) and mean swell size ranges from 1.5m to 1.6m. During this period, wind conditions are relatively better compared to summer months, with good wind days occurring 28–32% of the time—still not ideal, but significantly improved over summer’s 15–20%. The winter months (June–August) provide the most consistent swell size and quality, though offshore winds remain somewhat inconsistent. Conversely, summer (December–February) sees slightly smaller swells (1.4m) and far worse wind conditions, with bad winds occurring over 80% of the time, making sessions heavily dependent on timing. Autumn (March–May) and spring (September–November) serve as transitional periods, with March and April showing early improvements in swell consistency while October and November begin to see a decline. For surfers prioritizing quality over frequency, late autumn to early spring (May–September) delivers the most dependable combination of swell size and cleaner conditions despite the persistent challenge of onshore winds.

September at Jan Juc offers fairly consistent surf conditions with a predominant swell from the southwest, accounting for the majority of waves in the 1–2.5m range. The average swell height is 1.6m with a solid period of 13.7s, producing well-organized, powerful waves—ideal for intermediate to advanced surfers. Wind conditions are favorable 28% of the time, typically when lighter northerly or variable offshore flows align with the swell. However, strong onshore winds from the northwest to southwest are common, particularly in the 20–30kph range, which can degrade wave quality. The best sessions occur when SW swell combines with lighter winds, creating clean, ridable walls. Expect the biggest waves (over 2.5m) mainly from the SW direction, though less frequent. Overall, September delivers punchy, mid-sized waves with occasional pristine conditions, but wind interference requires selective timing.