Conditions at Hokkaido in October
October: Autumn Alchemy
October is where the North Pacific finally roars to life. Extratropical cyclones become more organised and the average height holds at 2-3ft (0.9m) while the average period remains 8.1s. The swell distribution shows a better spread than summer: SSE (27.8%), SE (18.3%), S (14.1%), SSW (9.8%) and SW (8.6%), giving the SSW-facing beach more angles to work with. Winds are mixed, but the N/NW quadrant delivers enough offshore flow that ideal conditions reach 16%. When a low tracks through the Sea of Japan, expect clean 4-6ft (1.2-1.8m) S/SW swell under NW offshore wind. Water temp is 15.4°C and air temps average 12.4°C, making for excellent autumn surf conditions.
Average Spot conditions at Hokkaido in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Hokkaido 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 Hokkaido for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Hokkaido 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 Hokkaido.