Conditions at Carrownisky in October
October: The North Atlantic Roars Back
October is the true start of Carrownisky's prime window. The average swell height jumps to 5ft (1.5m), and the period climbs to 10.8s, meaning real long-period groundswell returns to the surf forecast. The direction distribution is ideal for the beach: W (22.5%), WNW (17.0%), WSW (14.4%) and SW (8.1%) dominate, generated by deepening low-pressure systems tracking across the North Atlantic. A significant portion of the swell now sits in the 3-6ft (1-2m) range, with solid 6ft waves starting to appear on the big days. Ideal offshore winds occur 16% of the time, with E and ESE winds notably more frequent than in summer - a classic autumn setup as high pressure begins to build to the east. When those offshore E/ESE winds align with a fresh W/WNW groundswell, Carrownisky can be world-class for a west-facing beach. Air temperatures average 11.4°C (range 3.7 to 17.6°C), rainfall increases to 4.30 mm/day, and water temperature drops to 13.3°C (56°F), so a good 4/3 wetsuit is the call.
Average Spot conditions at Carrownisky in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Carrownisky during October. 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 Carrownisky for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Carrownisky for October. 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 Carrownisky.