Conditions at Dunmoran Strand in September
September: Fires Up Again
September is the great return of Atlantic energy. Average swell height climbs back to 1.7m (5-6ft) and average period ramps to 10.2s, so lines start to rebuild both in size and in power. The dominant swell direction is WNW at 24.6%, with W at 17.6%, NW at 13.9% and NNW at 12.0%; that mix provides plenty of exposure for the north-facing sandbars. The wind pattern also cooperates more often, with ideal offshore SSE/S/SSW/SW wind at 31% and the strongest wind directions routinely in the S-SW sector. Water temperature is still mild at 15.2°C, and air temps remain pleasant, making September one of the most user-friendly months for solid surf without harsh weather. As the autumnal storm track starts to strengthen, the number of proper groundswell events increases noticeably-this is the month to watch closely.
Average Spot conditions at Dunmoran Strand in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Dunmoran Strand 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 Dunmoran Strand for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Dunmoran Strand 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 Dunmoran Strand.