Conditions at Magheroarty in September
September: Autumn's First Pulse
September is when the North Atlantic begins to wake up. Average swell height rebounds to 7.2ft (2.2m) and the period climbs back to 10.2s, giving Magheroarty a more serious pulse. The swell direction profile is still excellent: W 18.0%, WNW 16.8%, NW 8.1%, NNW 6.5% and N 0.7%. More of that energy is now in the 1.5-2.5m category, and the over-2.5m class starts to appear with increasing frequency. It is the classic first autumn swell month - powerful but not yet the constant beating of midwinter.
Winds remain favourable enough to enjoy it. Ideal offshore conditions arrive 14% of the time, with WSW and SW winds prominent. The bad N/NW/NNW winds are still present, but the overall balance is workable. Water temp is a mild 15.1°C, air temp averages 12.6°C, and precipitation is around 3.61mm/day. Surfers willing to chase the first cold-front systems can find world-class, long-period WNW groundswell with a lot less company than in winter.
Average Spot conditions at Magheroarty in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Magheroarty 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 Magheroarty for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Magheroarty 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 Magheroarty.