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Conditions at Yumuri in October
October: The Autumn Transition Begins
October still has one foot in summer, with average surf at 2ft (0.7m) and period at 6.4s, but the ocean is starting to shift. ENE swell remains dominant at 60%, while NE swell bumps up to 14% as the first cold fronts push out of North America. E and ESE directions still add another 17%, so the east-heavy trade wind pattern has not given up yet. The wind field also shows a more balanced distribution: ENE drops to 32%, NE rises to 20%, and southerly winds become a little more frequent-yet ideal offshore conditions still only occur about 9% of the time. October is also the wettest month of the year at 4.02mm/day, with warm water at 28.7°C and air temps at 27.6°C. As the NAO begins to wobble and the Atlantic low-pressure track strengthens, the first genuine N/NNW groundswell opportunities start to appear on the horizon.
Average Spot conditions at Yumuri in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Yumuri 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 Yumuri for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Yumuri 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 Yumuri.