Nuevo Vallarta seasonal overview
Nuevo Vallarta benefits from consistent ground swells year-round, with the highest reliability from January to May when ground swells dominate 92-94% of the time and average swell heights hover around 0.9m. During these months, wind conditions are also most favorable, particularly in January (69% good winds), December (68%), and February (64%), making them the prime window for surfers seeking clean, rideable waves. The swell consistency drops slightly from June to September, with ground swells dipping to 77-80% and no-swell days increasing, especially in July-August when wind conditions worsen (only 46-47% favorable). However, September brings a slight rebound in swell quality (79% ground swells, 0.9m) before improving further in October (86%). Late autumn through early winter (October-December) offers a solid compromise—decent swell consistency (86-89%) and improving winds (58-68% good), though with marginally smaller waves (0.7-0.8m). For ideal surf, prioritize January to February when swell reliability, size, and offshore winds align best, while May onward sees increasing onshore winds and lower consistency, particularly in midsummer (June-August). Advanced surfers may still find workable waves in shoulder seasons (October, April), but the winter months deliver the most optimal balance of power and conditions.
Loading chart...
Conditions at Nuevo Vallarta in September
September in Nuevo Vallarta offers consistent surf with an average swell height of 0.9m and a solid period of 14.4s, indicating well-spaced, powerful waves ideal for intermediate to advanced surfers. The swell predominantly arrives from the SSW (32.5% of the time in the 0.5-1m range) and SW (20.4%), providing clean, rideable waves with good shape. The wind is favorable 50% of the time, mostly light (under 20kph) and variable, though occasional stronger gusts from the SE/SSE can bring chop. Expect the best conditions during morning sessions when winds are lighter. Wave heights are frequently in the 0.5-1.5m range (64% of the time), with larger sets up to 2.5m possible but less common. Overall, it’s a reliable month for surf, balancing size and rideability.
Average Spot conditions at Nuevo Vallarta in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Nuevo Vallarta 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 Nuevo Vallarta for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Nuevo Vallarta 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 Nuevo Vallarta.
