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Conditions at Long Beach in April
April: Shoulder Season Shuffle
April marks a true shoulder month at Long Beach. Average swell height drops to 6.2ft (1.9m), and while periods remain respectable at 11.8s, the North Pacific storm track is starting to weaken. The swell source is still well aligned: WSW (29.0%) and W (30.2%) dominate, with SW adding 12.3% and WNW 3.6% - the optimal direction window is rarely empty. The catch is wind quality. Offshore NE to ESE flow tumbles to just 18% of the wind rose, while persistent WNW winds become the dominant signal at 20.5%, reinforced by NW (10.0%) and SE (11.3%). Ideal conditions drop to 27%, so clean windows tend to be early morning before the sea breeze or in the form of brief offshore surges. Air temps rise to 7.7°C, water temps reach 10.0°C, and rainfall eases to 5.12mm/day. April is a transition month: less raw power, more variable winds, but still plenty of long-period swell for a well-chosen session.
Average Spot conditions at Long Beach in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Long Beach 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 Long Beach for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Long Beach 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 Long Beach.