Conditions at Hokkaido in July
July: Grey, Windy and Marginal
July is similar to June, only warmer and even more wind-dominated. The swell rose is a sea of SSE: 62.5%, with SE another 24.1%, but 2-3ft (0.5-1m) conditions fill the bins. Periods average 8.6s, the product of the seasonal southerly swell regime rather than any long-period groundswell. Onshore winds from S, SSE and SSW account for over half of all observations, leaving ideal offshore wind at a meagre 10%. Water temp reaches 17.2°C, which is pleasant, but the waves are small and crumbly. The best chance for surf is when a passing tropical system to the south sends a longer-period SSE pulse while a transient NW wind cleans it up; otherwise, leave the board in the car.
Average Spot conditions at Hokkaido in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Hokkaido during July. 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 July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Hokkaido for July. 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.