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Conditions at South Wall Ballina in September
September: Morning Offshore, Mixing Swell Sources
September is a transition month with plenty of rideable surf. SSE still leads the direction parade at 21.1%, but E (11.6%), ESE (11.1%), NE (9.2%) and NNE (10.3%) all contribute, signaling the return of tropical trade swell. The average period drops to 8.8s and the average height eases to 5ft (1.5m). Water temperature warms slightly to 20.5°C, while rainfall remains minimal at 1.34 mm/day.
The offshore wind signal is still strong, with ideal winds at 50%, largely due to a huge NNW presence at 16.6%. That classic spring pattern of offshore mornings and afternoon sea breezes is in full effect. The surf is often smaller and less powerful than July-August, but when S/SSE groundswell overlaps with a NNW offshore flow, the wall can still produce smooth, hollow waves.
Average Spot conditions at South Wall Ballina in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at South Wall Ballina 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 South Wall Ballina for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at South Wall Ballina 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 South Wall Ballina.