Conditions at Inamuragasaki in October
October: Autumn Gold - Clean Offshore Winds and Building Swell
October is arguably the pick of the year at Inamuragasaki. The average swell height is still modest at 0.7m (2.3ft), but the average period stretches to 8.7s, and the wind statistics turn dramatically more favourable. Offshore flow dominates - N (12.2%), NNE (32.3%), NE (15.1%) and NNW (4.9%) combine for nearly 65% of the time - while onshore SSE/S/SSW/SW winds drop to under 18%. That gives you a 20% ideal-wind statistic, the highest of the entire year. The swell direction is more mixed, with SSE (14.7%), S (11.8%), SSW (8.7%) and SW (2.8%) making up 38%, complemented by NE/E/SE energy, but the consistent offshore wind cleans up whatever swell arrives. Air temperatures cool to 16.1°C, water still holds at 22.9°C, and precipitation averages 6.51 mm/day. This is a prime month for long, glassy sessions on clean 2-3ft (0.6-0.9m) waves.
Average Spot conditions at Inamuragasaki in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Inamuragasaki 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 Inamuragasaki for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Inamuragasaki 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 Inamuragasaki.