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Conditions at Rincon Point in September
September: The Crux of South Swell and Clean Wind
September is the first breakout month after the summer doldrums. Average height is still 3ft (0.9m), but the period holds at 11.2s, and the southern direction window peaks around 13.1% - SW at 10.8% and SSW at 1.9%. WSW also pumps in at 27.2%, giving the point more southern-hemisphere flavor. Ideal offshore wind days double to 18%, and the wind rose begins to show more W and WNW flow rather than pure SW onshore. That combination allows some great early fall sessions, especially when a south groundswell meets light morning N/NW conditions.
Autumn heat remains with average air temperature 22.3°C, water temperature reaching 16.9°C - the warmest of the year - and precipitation just 0.10 mm/day. September is the best summer-like month for Rincon, offering a taste of quality before the winter grinds return.
Average Spot conditions at Rincon Point in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Rincon 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 Rincon Point for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Rincon 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 Rincon Point.