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Conditions at Muizenberg in September
September: The Last Strong Pulses and a Rising East Wind
September is a classic shoulder month: winter still has one foot in the door, but spring is knocking hard. The average swell height is still substantial at around 9ft (2.7m), with a 12.1s period, and the swell directions include SW (17.8%), WSW (9.7%), SSW (11.0%), S (6.5%), SSE (1.8%) and W (2.7%). These late-winter fronts can deliver excellent groundswell to Muizenberg. The catch is the return of the south-easterly wind regime: SSE climbs back to 17.7%, SE to 15.5%, S to 9.2% and SSW to 4.8%. Still, NNW (14.2%) and NW (9.0%) mean a 21% ideal rating and enough clean sessions to keep the stoke alive. Air temp is 13.4°C, water temp 15.2°C, and rainfall drops to 1.94 mm/day. Be ready to move quickly when a front passes - the post-frontal NW offshore window is the September goldmine.
Average Spot conditions at Muizenberg in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Muizenberg 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 Muizenberg for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Muizenberg 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 Muizenberg.