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Conditions at Flagler Avenue in December
December: Winter's Credentials Arrive
December closes the year with steady, thumping surf. Average swell height is 4-5ft (1.3m), period 8.4s, and the direction profile is ideal: ENE 17.8%, E 19.9%, NE 14.5%, NNE 9.5%, with ESE 11.6%. The larger size classes - 5-7ft (1.5-2m) and 6-8ft (2-2.5m) - are well represented across the north-east quadrant. Wind is favorable 39 percent of the time, as frontal passages become more frequent and W/SW offshore flows follow in their wake. NNW remains the top wind direction at 14.1%, but it's a clean cross-shore that doesn't wreck shape like an easterly. Water temp has cooled to 21.4°C (71°F), air temp averages 19.9°C (68°F), and precipitation averages 2.04 mm/day. The long-range pattern favors repeated Atlantic low-pressure systems. It's a great month to be a surfer.
Average Spot conditions at Flagler Avenue in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Flagler Avenue 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 Flagler Avenue for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Flagler Avenue 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 Flagler Avenue.