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Conditions at Porthleven in November
November: Full Storm Mode
November is the North Atlantic in full storm mode. Average swell height reaches around 7ft (2.1m) with an average period of 10.5s, producing powerful and consistent groundswell. The wave rose is dominated by W (18.3%), WSW (12.7%), WNW (10.6%), SW (6.7%) and SSW (3.6%). The W and WSW components are the main drivers of surf at Porthleven, while WNW pulses can add extra energy but with a more difficult angle.
Wind remains the limiting factor. WSW (9.8%), W (9.6%), SW (9.1%), SSW (8.0%) and WNW (8.5%) dominate, and ideal offshore N/NNE/NE/ENE flow is just 17%. Passing fronts deliver rain and wind, so the cleanest waves arrive in the short windows after cold fronts, when winds shift to the NW/N and the ocean is still pumped full of swell.
Water temperature is 13.1°C, air averages 11.7°C, and rainfall is 3.87 mm/day, the wettest month of the year. November is for experienced surfers who can handle size, cold water and less-than-perfect winds in exchange for serious, heavy waves.
Average Spot conditions at Porthleven in November
Swell history for November
Wind history for November
Swell quality
Analyze the groundswell consistency at Porthleven during November. 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 Porthleven for your next trip in November.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Porthleven for November. 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 Porthleven.