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Rio de Coyula - surf spot statistics
Rio de Coyula seasonal overview
Best Surf Season (May - September)
The heart of the south swell season arrives in May and continues through September as powerful storms in the Southern Hemisphere generate long-period groundswell that march thousands of miles north to consistently hit Rio de Coyula's south-facing beach. Average wave heights settle in the 1.5-1.7m range with periods well above 13 seconds, delivering solid, rippable waves day after day. The offshore wind regime prevails, with the North Pacific high-pressure system dominating and funneling clean N to NW winds across the break. This is prime time for surfing.
Fair Surf Season (October - February)
As the Southern Hemisphere storm track weakens, average swell heights drop to around 1.2-1.5m, but the wave period remains long (12-13s), keeping the surf quality high. The dominant swell direction remains from the SSW-SW, though occasional pulses of ENE background swell from distant North Pacific fronts add variety. Offshore winds are still frequent, especially in November and December when the continental high pressure sets in. While the surf is smaller, it remains fun and grovel-worthy on the better days.
Low Surf Season (March - April)
The transition months of March and April see a dip in both swell consistency and wind reliability. The average wave height holds around 1.4-1.5m, but the percentage of favorable offshore winds drops to its lowest annual levels (44-47%). The typical pattern involves a battle between lingering winter winds and building summer breezes, often resulting in onshore flow from the south. Still, occasional long-period SSW groundswell can reward those who pick the right day, offering punchy, clean waves when conditions align.
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Conditions at Rio de Coyula in July
July: Peak Summer and Maximum Wind Reliability
July offers average 1.6m surf at 13.7s, but the highlight is the wind: ideal 62% of the time, the highest of the year. Swell directions are perfectly aligned with the spot, combining S (41.6%) and SSW (49.3%) to deliver clean, organized lines. The NW and NNW winds provide classic offshore conditions, especially in the mornings. This is the month for long sessions and dialed-in rides.
Average Spot conditions at Rio de Coyula in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Rio de Coyula 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 Rio de Coyula for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Rio de Coyula 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 Rio de Coyula.