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Conditions at Sandy Hook in April
April: The E'ly Shoulder Month
April is a true transition month. The average swell softens slightly to 4ft (1.2m), but the E direction remains a dominant player at 15.3% of the swell rose, keeping optimal swell directions above 25%. Periods stay in the average 7.4-second range, so the waves are rippable and fun rather than heavy. The wind distribution is more balanced than in winter: northwest and west winds still appear, but southwest flow is becoming more frequent as thermal gradients strengthen. This means a growing number of clean, offshore morning sessions. Air temperatures rise to an average of 8.8°C, water edges up to 8.4°C, and spring rains contribute to a raw, vibrant Atlantic feel. It is not prime pump season, but April delivers enough E'ly pulses to keep good boards in the water.
Average Spot conditions at Sandy Hook in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Sandy Hook 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 Sandy Hook for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Sandy Hook 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 Sandy Hook.