Conditions at Inamuragasaki in July
July: Maximum South Energy, Minimum Clean Windows
July is the heart of the south-swell season, with SSE (19.3%), S (32.7%) and SSW (30.2%) producing over 82% of the wave energy. Average swell height remains at 0.7m (2.3ft), but period lengthens slightly to 8.3s, giving the waves a bit more push. Despite the abundant south in the water, this is one of the worst months for wind: onshore directions blow a whopping 57% of the time, led by SSW (22.2%) and SW (14.4%) with frequent 20-40kph gusts. Offshore wind occurs just 23% of the time, and ideal conditions are limited to 14% - the lowest of the year. Water temperature reaches a toasty 24.2°C and air averages 24.6°C, so you're surfing in board shorts or a spring suit. Precipitation is high at 5.89 mm/day. July is a classic 'check the buoy, then check the wind' month; when a typhoon tracks just right and the wind turns N/NNE, it can fire, but those moments are rare.
Average Spot conditions at Inamuragasaki in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Inamuragasaki 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 Inamuragasaki for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Inamuragasaki 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 Inamuragasaki.