Manzanillo seasonal overview
Best Surf Season (April - October)
From April through October, Manzanillo comes into its own as the trade winds ease and the Pacific sends consistent, long-period swell from the SSW and SW. This is when the percentage of clean, offshore wind days climbs to its annual peak, particularly in September and October when the wind shifts lighter and more variable. Average wave periods range from 12 to 14 seconds, bringing powerful, well-shaped waves that wrap into the southwest-facing bay. The combination of favorable swell direction and improved wind conditions makes this the prime window for quality surf.
Fair Surf Season (March & November)
March and November serve as transitional months, where the swell direction begins to shift and wind patterns are less stable. March sees the first hints of long-period south swell mixing in with the dominant easterly trade wind swell, while November retains some south swell before the trade winds fully re-establish. However, the percentage of ideal wind days is moderate, and the consistency of quality surf is lower than the peak season. Still, with a bit of patience, you can score some fun sessions.
Low Surf Season (December - February)
December through February marks the low point of the year for Manzanillo. The trade winds howl out of the east-northeast, often exceeding 30 kph, creating choppy, wind-blown conditions. Swell is short-period and predominantly from the east and northeast - directions that don't favorably wrap into the southwest-facing beach. While the average wave height sits around 1.3-1.4m, the quality is poor, with few windows of clean, rideable surf. This is the time for a surf trip elsewhere or for taking a break.
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Conditions at Manzanillo in April
April: Spring Awakening
April is when the surf season starts to shift into gear. The average period climbs to 13.1 seconds, and for the first time, swell from optimal directions dominates: SSW (26.5%) and SW (9.1%) now combine for over a third of the total energy. The trade winds begin to weaken, with ENE dropping to 69.9% and lighter speeds becoming more common. Ideal offshore wind conditions increase to 14% of the time – the best so far. This month serves up a mix of lingering easterly windswell and building south groundswell. Early mornings often offer glassy conditions before the sea breeze kicks in. It's a promising start to the prime season.
Average Spot conditions at Manzanillo in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Manzanillo during April. 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 Manzanillo for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Manzanillo for April. 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 Manzanillo.
