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Conditions at Long Beach in May
May: The Sweet Spot Begins
May offers the highest chance of clean, quality surf during the year, with ideal wind conditions at 21 percent and average swell size up to 8.5ft (2.6m). The average period of 12.4s places the bulk of the energy in the powerful, long-period class. Swell comes from SW at 25.7 percent, WSW at 11.9 percent and SSW at 11.8 percent, with plenty of waves in the 5-8ft (1.5-2.5m) bracket and larger. Wind data show a true transitional pattern: SE/ESE/SSE offshore airflow totals roughly 40 percent, while NNW at 19.1 percent and NW at 10.8 percent represent the onshore side of passing cold fronts. Each frontal passage brings a window of clean, large surf for Long Beach. Water temperature hovers at 16.6C, air temps average 16.5C, and rainfall climbs to 1.57 mm/day.
Average Spot conditions at Long Beach in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Long Beach 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 Long Beach for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Long Beach 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 Long Beach.