El Chinchorro seasonal overview
Best Surf Season (November - February)
Winter at El Chinchorro is prime time. The North Atlantic winter pattern strengthens the trade winds and sends consistent east-northeast swell marching toward the Dominican south coast. Combined with a high frequency of offshore winds from the north and northwest (peaking at 76% in December), the surf becomes clean and punchy. Average wave heights range from 1.0 to 1.2m with periods around 6.2-6.5s, providing fun-sized, rippable waves. While the swell direction is not optimal (dominant from E to ESE), the offshore wind cleans up the faces nicely. This is the most reliable window for good waves.
Fair Surf Season (March - April & September - October)
During the spring and fall shoulders, the offshore wind frequency drops to the 53-56% range and the swell mix shifts more toward shorter period ESE swells. Wave heights thin to 0.8-1.0m, and the quality becomes more inconsistent. Still, there are plenty of groveling sessions to be had, especially when the wind swings clean.
Low Surf Season (May - August)
The summer months are the toughest for finding clean waves at El Chinchorro. Offshore wind percentages dip to their annual lows (as low as 47% in June), and the swell is almost exclusively from the ESE with short periods (6.2-6.6s). Wave heights hold around 1.0-1.1m but lack power and shape. The onshore winds from the south and southwest during this time can quickly turn conditions choppy. However, the Atlantic hurricane season can throw in some long-period gems if you keep an eye on tropical disturbances.
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Conditions at El Chinchorro in September
September: Autumn Equinox Lull
September sees a noticeable drop in both swell height and offshore wind reliability. Average waves are just 0.9m with a 6.2s period – the smallest of the year. The swell direction is heavily weighted toward ESE and SE, meaning more waves with some south in them. The wind pattern becomes more variable; while north and north-northwest still blow (combined 39%), the onshore south to southwest winds increase, spoiling many sessions. This month is a waiting game for the first autumn cold fronts to kick the north wind back into gear. But tropical storms can still deliver some long-period gems.
Average Spot conditions at El Chinchorro in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at El Chinchorro during September. 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 El Chinchorro for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at El Chinchorro for September. 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 El Chinchorro.
