Conditions at Ohama in October
October: East Swell Riches but Onshore Wind Tax
October offers the highest concentration of east energy of the year. ENE at 21% and E at 21% lead the way, with ESE at 12%, SE at 7%, and SSE at 5% bringing the ideal E/ESE/SE/SSE total to around 45%, plus another 21% from adjacent ENE. Average size is 5ft (1.6m) and periods are 8.2s, so the swell quality is high when direction aligns. The catch is a heavy NE at 33% and ENE at 19% wind regime, leaving ideal surfing wind at just 17%, the lowest of the year. This pattern is classic autumn in Japan: solidly sized, well-directed eastern swell often chopped up by NE monsoon surface flow. Pick your windows carefully, especially days when W/NW afternoon winds or high pressure cleans it out. Water temperature is 23.7°C, air averages 21.5°C, and rain measures 7.3mm/day.
Average Spot conditions at Ohama in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Ohama 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 Ohama for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ohama 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 Ohama.