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Conditions at Zuma Beach in December
December: Prime Offshores, Building Swell
December delivers the highest percentage of ideal wind of the entire year - 63% - with N/NNE/NE offshore flows proving highly consistent. The average swell is around 3.3ft (1.0m) and the 12.3s period keeps the wave faces lined up. The wave rose is more westerly than summer, with west at 49%, WSW at 22%, and WNW at 11%, so the largest swell events often arrive as west-northwest groundswell refracting onto the beach. Water temperature drops to 14.6°C, air sits at a crisp 13.3°C, and precipitation increases to 2.30 mm/day. With the winter system track fully active, bigger swell is always on the horizon.
Average Spot conditions at Zuma Beach in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Zuma Beach 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 Zuma Beach for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Zuma Beach 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 Zuma Beach.