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Conditions at Yumuri in July
July: The Trade Wind Machine Maxes Out
July gives the wave height average a slight bump to 3ft (0.9m), but it is a classic trade wind mirage. The swell is overwhelmingly ENE, with a massive 85% of all observations coming from that single direction. Periods remain a weak 6.0s, and while 31% of the month sees 3-5ft (1-1.5m) surf, almost all of it is windswell generated by the very same ENE winds that make conditions bumpy. Those winds are relentless: ENE accounts for 60% of all wind observations, with a large share blowing 20-40kph. That means a north-facing beach like Yumuri is exposed to constant side-shore/onshore energy, leaving the surf sectioned and lumpy. Offshore S/SW flow drops to just 7%, so clean sessions are scarce. Water temperature is 27.7°C, air temps sit at 27.9°C, and rainfall is 1.63mm/day. If you have to surf, bring a groveler and pick a semi-sheltered corner.
Average Spot conditions at Yumuri in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Yumuri 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 Yumuri for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Yumuri 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 Yumuri.