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Conditions at Trigg Point in September
September: Big Swell Hangs On, But the Wind Fights Back
September is the classic transition month on the lower west coast. The Southern Ocean is still throwing haymakers, and Trigg averages a solid 8-9ft (2.6m) of swell at 13.0s - basically the tail end of winter's power. SW and WSW again lead the charge at 35.9% and 14.3%, respectively, with enough W energy to keep the west-facing banks active. The problem is the wind: onshore SW/WNW flow now dominates the offshore breeze pattern, and ideal surfing wind drops to 32%. You will find more bumpy, wind-affected days, but when a high pressure ridge sets up to the south and drags in E/SE winds, the quality is world-class. Water temp is 18.4°C, air temps are around 15.8°C, and rainfall eases a bit to 2.56mm/day. It is a month for patience and shrewd forecasting.
Average Spot conditions at Trigg Point in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Trigg Point 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 Trigg Point for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Trigg Point 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 Trigg Point.