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Conditions at Hermosa Beach in May
May: The Balance Shifts Toward Summer Swell
May marks a clear transition in the wave rose as W drops to 29.3%, WSW rises to 40.2%, and SW jumps to 24.2%. The average period remains at 12.0s, average height is still 0.9m (3ft), and just over a quarter of readings exceed 1m (3.3ft). Ideal wind drops to 20%, while W, WSW and SW combined make up more than half of the wind distribution. That means afternoon surface texture is common, but the long-period SW/WSW groundswell can still be clean in the early morning. Air averages 17.4°C, water is 14.2°C, and rain is minimal.
Average Spot conditions at Hermosa Beach in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Hermosa 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 Hermosa Beach for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Hermosa 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 Hermosa Beach.