Conditions at Penarronda in October
October: Autumn Arrives with Renewed Groundswell
The North Atlantic roars back to life in October. Average swell heights climb to around 4ft (1.3m), average period stretches to 11.1s, and ideal wind days jump to 45 percent. The swell rose shows NW powering in at 40 percent, with NNW at 28 percent and WNW at 11 percent. The increasing frequency of deep extratropical cyclones west of the British Isles sends pulsing, long-period groundswell into the Bay of Biscay, and Penarronda's north-facing orientation catches it square on. Expect plenty of clean, rippable 3-5ft (1-1.5m) days with some bigger 5-7ft (1.5-2m) sets.
Wind is a major plus in October: S, SSW and SW offshore winds make up 38 percent of observations, while onshore north and northwest winds are limited. Water temperature is still a comfortable 16.9°C, air averages 14.8°C, and precipitation increases to 3.33 mm/day. This is the classic autumn transition: the ocean starts to deliver real groundswell and the winds start to cooperate. Penarronda is back on the radar.
Average Spot conditions at Penarronda in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Penarronda 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 Penarronda for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Penarronda 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 Penarronda.