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Conditions at Watergate Bay in December
December: Deep Winter Classics
December delivers the full force of winter to Watergate Bay. The average swell is back up to 7ft (2.1m), the average period is 11.7s, and the North Atlantic storm track is in its prime. W swell leads with 30.7%, WSW adds 13.1%, WNW contributes 10.4%, and NW chips in with 4.3%; the west-north-west facing beach remains fully exposed to the heaviest winter lines. The height distribution shows a serious percentage in the 5-8ft (1.5-2.5m) category plus meaningful XL days over 8ft (2.5m). Ideal wind frequency is 23%, but December is also the month when cold easterlies from a continental high can blow offshore for days, cleaning up the bay as the water temp drops to 11.1°C. Air temps average 8.7°C, precipitation is 4.15mm/day, and the sessions are short and cold. This is big, powerful, cold-water surfing at its finest.
Average Spot conditions at Watergate Bay in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Watergate Bay 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 Watergate Bay for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Watergate Bay 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 Watergate Bay.