Conditions at Porzcarn in October
October: Season's Ignition
The North Atlantic roars back to life in October, and Porzcarn feels it immediately. Average swell height jumps to 5ft (1.6m), average period stretches to 10.4s, and the surf quality takes a decisive step up. The waverose shows a healthy distribution across the optimal swell window: W (27.3%), WNW (20.5%), WSW (15.6%) and even a solid SW influence (6.6%). More energy arrives in the 5-8ft (1.5-2.5m) band, meaning consistent head-high-to-overhead waves. The wind picture is a mixed bag: offshore ENE-SE flow is present about 23% of the time and ideal conditions sit at 20%, but southwest and west winds also blow frequently, so timing is everything. As autumn storms deepen over the North Atlantic, the NAO becomes more influential; a negative NAO can park high pressure over Europe and feed clean offshore easterlies across France. Air temps sit at 13.7°C, water temp is still a warm 15.9°C, and rain begins to ramp back up at 3.02 mm/day. October offers that sweet spot of serious swell without bitter cold.
Average Spot conditions at Porzcarn in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Porzcarn 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 Porzcarn for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Porzcarn 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 Porzcarn.