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Conditions at Port Orford in September
September: First Signs of Autumn
September is a sleeper month on the southern Oregon coast. The average swell height is 5ft (1.6m) but the period builds back to 10.6s, signaling the return of true groundswell. The wave rose shows a healthy mix of WNW (31.0%) and NW (29.7%), with W (14.9%) and NNW (11.8%) helping to add variety. The wind regime is still summery: NNE 23.3%, NNW 22.7%, N 17.1%, and ideal offshore wind at 42%. The ocean is clean, the days are mild, and water temperature is 11.6°C. While it is not a big-wave month, the combination of increasing period and offshore wind makes September one of the most enjoyable months for a log or a high-performance shortboard in the chest-to-head-high range. Air temps average 15.1°C (min 6.5°C, max 32.9°C) and precipitation is only 1.21mm/day.
Average Spot conditions at Port Orford in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Port Orford 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 Port Orford for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Port Orford 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 Port Orford.