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Conditions at Tolcarne in September
September: Autumn's First Real Pulse
September is where things begin to awaken. Average swell height lifts to 4ft (1.3m), period lengthens to 9.6 seconds, and the percentage of 4-8ft (1.2-2.4m) waves climbs noticeably. W still leads at 40%, with WNW at 19% and WSW at 13%, and the swell distribution begins to fatten toward the 3-6ft (1-1.8m) range. The first serious North Atlantic lows of autumn send in longer-period groundswell that starts to make Tolcarne feel like a proper surf beach again.
Wind quality improves to 24% favorable, and the offshore S/SSW/SW/WSW quadrant totals around 30%, often under warm late-summer sunshine. Sea temps are still comfortable at 16.4°C, air averages 15.3°C, and precipitation is moderate. September is one of the best shoulder months: you get the improving swell of winter without the brutal cold and relentless rain.
Average Spot conditions at Tolcarne in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Tolcarne 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 Tolcarne for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Tolcarne 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 Tolcarne.