Conditions at Arenillas in July
July: The Flattest Month at Arenillas
July is the flattest month of the year at Arenillas. The average swell height is only 3ft (0.9m) and the period is 8.9s, which is marginal for this exposed stretch. The NW direction still dominates the background wave rose at 59.8%, with NNW 26.0%, but more than a third of the time the surf sits in the 0.5-1m range, and much of it is short-period windswell rather than clean groundswell. The wind situation worsens: the ideal offshore wind percentage drops to 22%, the lowest of the year. The thermal pattern is relentless, with ENE 11.8%, NE 8.9% and E 8.8% all blowing onshore, while the sea breeze strengthens through the day. Air temperatures are the warmest of the year at 20.2°C (max 34.5°C) and water temp peaks at 21.3°C. Precipitation is low at 1.22mm/day. Summer at Arenillas is about small, playful waves with occasional clean mornings - not a destination for serious swell.
Average Spot conditions at Arenillas in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Arenillas 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 Arenillas for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Arenillas 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 Arenillas.