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Conditions at Oceanside Pier in April
April: Solid SW/W Swell, Spring Breeze Builds
April averages 3-4ft (1.1m) of swell with a 13.3s period. The directional mix shifts toward WSW at 41%, W at 33%, and SW at 22%, which is still highly favorable for Oceanside. A significant portion of this swell falls in the 3-5ft (1-1.5m) range, with W swell contributing over 6% in the 5-6.5ft (1.5-2m) range. This is real surf - the Pacific is still producing long-period groundswell even as the North Pacific storm track starts to weaken.
Wind quality is the limiting factor. Ideal wind sits at only 18%, and the classic spring pattern of NW morning sideshore transitioning to strong W/WSW onshore afternoon wind takes hold. W wind alone accounts for 21.4% of observations. The best waves happen before 9am or in the lee of a retreating front. With air temps at 15.6°C, water at 14.4°C, and only 0.69mm/day of rain, April is dry but increasingly afternoon-affected by wind.
Average Spot conditions at Oceanside Pier in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Oceanside Pier 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 Oceanside Pier for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Oceanside Pier 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 Oceanside Pier.