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Conditions at Bogan River in September
September: The Wind Machine Takes Over
September is a tease. The swell is still at its winter maximum-average 1.9m (6ft), with the longest average period of the year at 13.1s. The direction mix is excellent: WSW at 32.9% actually nudges ahead of SW at 31.2%, and WNW/W add another 13%. For pure swell generation, this is world-class.
But the wind data reveal the classic spring problem: onshore SW-WNW winds are present 46% of the time, while the ideal offshore quadrant (NE-ESE) occurs only 18%. The result is a lot of heavy, messy and cross-onshore surf. When high pressure does build and the wind turns ENE, the 6ft (1.9m) groundswell becomes spectacular. Air temps begin to rise to 13.4°C, water is still cold at 14.5°C, and precipitation eases to 3.38mm/day-but patience is required.
Average Spot conditions at Bogan River in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Bogan River 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 Bogan River for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Bogan River 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 Bogan River.