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Conditions at Ballito in September
September: Spring Swing and Maximum Size
September produces the largest average swell height of the year at 2.0m (6-7ft), but it also signals the return of springtime wind instability. The average period drops to 9.4 seconds, so while there is plenty of energy, it can arrive less organized than mid-winter. Swell directions are broad: ENE (14.9%) and S (18.8%) lead the charge, with SSE (15.9%), E (11.7%), ESE (11.0%) and SE (12.1%) all contributing. The 2-2.5m (6.5-8ft) range is especially well represented, meaning the standout days can be powerful and heavy. Ideal wind falls to just 26 percent, however, as NE (15.4%), NNE (13.3%) and SSW (18.8%) reassert themselves. Offshore WSW-W-WNW-NW flow is much scarcer. Water temperature starts to rise again at 21.2°C, air averages 19.9°C, and rainfall increases to 1.46 mm/day. If you get a clean September swell, it can be the heaviest wave of the year at Ballito; just be patient between wind events.
Average Spot conditions at Ballito in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Ballito 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 Ballito for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ballito 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 Ballito.