Razo seasonal overview
Best Surf Season (October - March)
The heart of the North Atlantic winter delivers the goods at Razo from October through March. Powerful extratropical cyclones track across the Atlantic, generating consistent, long-period swell from the NW and WNW quadrants that fire straight into this NNW-facing beach. Average swell heights climb above 2.5m, often pushing into the pumping (1.5-2.5m) and massive (>2.5m) ranges, with average periods of 11-13s that produce powerful, well-structured waves. The frequency of offshore winds from the S, SSW, and SW peaks during these months, with ideal conditions occurring 25-31% of the time—the highest of the year. These are the months when Razo truly shines, offering world-class waves when the stars align.
Fair Surf Season (April - May, September)
As winter loosens its grip, the energy dials down but still provides plenty of rideable waves. April and May see average swell heights drop to 1.9-2.4m with shorter periods around 9.8-10.7s, producing fun to solid conditions. The offshore wind window remains active but narrows, with ideal conditions around 20-21% of the time. Meanwhile, September marks the onset of the autumn transition: the first strong storms of the season begin to stir the Atlantic, lifting average swell heights back to 1.9m and periods to 10.2s. Ideal wind odds climb to 25%, setting the stage for the approaching peak season.
Low Surf Season (June - August)
Summer is the quietest period at Razo. The Azores High dominates, suppressing storm activity and leaving the beach with predominantly small, weak swell. Average heights hover around 1.5-1.6m and periods dip to 8.5-9.0s, producing mostly small to fun-sized waves. Northerly and northeasterly winds prevail—often onshore or side-onshore—reducing the quality further. Ideal offshore wind conditions drop to just 15-18%. While there are still occasional rideable waves, especially with a morning S or SSW breeze, it is definitely the low season for dedicated surf sessions.
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Conditions at Razo in May
May: Spring Lull with Fun Waves
May continues the spring slowdown. Average swell height drops to 1.9m and period to 9.8s—now mostly in the fun to good range. Swell energy from WNW (17.8%), NW (17.6%), and NNW (15.8%) still dominates, but a larger share of waves are in the 1-2m range. Ideal offshore wind occurs just 20% of the time, with SSW (9.8%) and SW (9.5%) leading. Onshore NE (17.4%) and NNE (14.9%) winds are common, often limiting quality to early morning or late afternoon windows. May is best for those content with smaller, rippable waves when the wind cooperates.
Average Spot conditions at Razo in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Razo during May. 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 Razo for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Razo for May. 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 Razo.
