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Conditions at Ulladulla Bommie in September
September: The South Swell Sends It
September marks the beginning of spring, but the Tasman is still in winter mode. Straight S swell reaches its highest share of the entire year at 19.2%, and SSE adds another 13.7%. Ideal winds remain high at 50%, with WNW/NW/NNW offshore flow frequent and reliable. The average period softens slightly to 8.7s, yet the sheer amount of S/SSE groundswell, often in the 5-8ft (1.5-2.5m) range, keeps the Bommie heavy. Weather starts to moderate-air temps average 15.4°C, water 16.4°C. As high-pressure systems drift north, the morning offshore windows (WNW/NW/NNW) become increasingly reliable.
Average Spot conditions at Ulladulla Bommie in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Ulladulla Bommie 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 Ulladulla Bommie for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ulladulla Bommie 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 Ulladulla Bommie.