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Conditions at Stent Road in September
September: Spring Storm Mix
September is a transitional month, and it shows in the statistics. The average swell height holds at 2.1m (6.9ft) with the longest period of the year at 12.3 seconds. Swell energy is still impressive, with WSW at 35.1% and W at 15.0%, giving plenty of power. However, the wind becomes the weak link: ideal surf conditions drop to just 14%. The onshore westerly quarter - WSW, W, and WNW - combines for over 33% of the wind distribution, while the southeast offshore flow fades to 8.0%. This means many days will be bumpy and wind-affected, but the underlying swell remains large. When a southerly change brings a brief SE offshore blast, Stent Road can be world-class. Water temp is still a chilly 13.8°C, air averages 12.4°C, and precipitation is around 4.09 mm/day. Patience is key in September.
Average Spot conditions at Stent Road in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Stent Road 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 Stent Road for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Stent Road 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 Stent Road.