Surf forecastStatisticsHistorical report

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 March

March: The Turning Point

March marks a noticeable shift as the average wave period jumps to 11.0 seconds, hinting at the arrival of longer-period swell from distant storms. While the swell is still dominated by ENE (32.3%) and E (12.3%), the first meaningful contributions from the SSW (9.3%) and SW (8.9%) begin to filter in – directions that actually wrap into Manzanillo favorably. However, the trade winds remain strong, with ENE blowing 78.9% of the time, keeping the ideal wind percentage at just 6%. This transitional month offers the occasional gem when a south pulse aligns with lighter ENE or NE winds, delivering punchy, rippable waves amid the lingering chop.

Average Spot conditions at Manzanillo in March

Swell history for March

0 - 0.5
0.5 - 1
1 - 1.5
1.5 - 2.0
2.0 - 2.5
> 2.5 m

Wind history for March

0 - 10
10 - 20
20 - 30
30 - 40
40 - 50
> 50 km/h

Swell quality

Analyze the groundswell consistency at Manzanillo during March. 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 March.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Manzanillo for March. 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.

Swell with good wind

Swell with good wind by size