Conditions at Rossnowlagh in June
June: Summer Lull Sets In
June is the beginning of the true low season. Average swell height dips to 0.8m (2-3ft) and the average period falls to 8.9s, meaning short-period, locally generated swell takes over. The directional distribution still shows plenty of WNW (29.3%), NW (19.3%), W (18.4%), and NNW (16.4%), but the heights are dominated by small waves: the 0.5-1m class is the most common, with only occasional 1-1.5m pulses. Wind is also less favorable, with ideal conditions just 18% of the time and WSW, SW, W, and WNW directions combining for a lot of onshore, lumpy conditions. Water temp warms to 13.6°C and air temps average 12.7°C, so summer wetsuits are coming out of the cupboard. The formula for a good June session is simple: wait for a southward-dipping low and a light E/ESE morning breeze.
Average Spot conditions at Rossnowlagh in June
Swell history for June
Wind history for June
Swell quality
Analyze the groundswell consistency at Rossnowlagh during June. 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 Rossnowlagh for your next trip in June.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Rossnowlagh for June. 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 Rossnowlagh.