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Conditions at 8th Street Jetty in December
December: Peak Winter Pattern Locks In
December closes the year with classic mid-Atlantic winter surf. Average height remains at 4.3ft (1.3m) and average period is 7.1s - plenty of punchy, rideable waves but not much long-period consistency. The Jetty's optimal swell directions (ENE/E/ESE/SE) account for only 26% of the record, with S (10.1%), SSW (8.1%) and SSE (7.5%) supplying the rest, so direction filtering is critical. The big story is wind: WNW (15.0%), W (13.2%) and NW (12.0%) combine with NNW (10.4%) to create a very offshore-friendly regime, and ideal winds blow 39% of the time. Water temps have dropped to 9.2°C and air temps average 5.9°C, so the winter wetsuit is fully on. Precipitation is high at 4.00mm/day - typical for frontal passages. East Coast lows and nor'easters around the holidays will occasionally deliver 5-6ft (1.5-1.8m) E/ESE swell; if the wind goes W/NW behind the storm, the Jetty can turn on in a big way.
Average Spot conditions at 8th Street Jetty in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at 8th Street Jetty during December. 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 8th Street Jetty for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at 8th Street Jetty for December. 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 8th Street Jetty.